Home / 58,160.06-87,240.09-18,720.26

Finding the Fourth Proportional to 58,160.06, 87,240.09 and 18,720.26

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Solution

The fourth proportional to 58,160.06, 87,240.09 and 18,720.26 is: 28,080.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,160.06 : 87,240.09 = 18,720.26 : x
  2. Step 2: Convert to fraction form
    58,160.06/87,240.09 = 18,720.26/x
  3. Step 3: Cross multiply
    58,160.06x = 87,240.09 × 18,720.26
  4. Step 4: Simplify right side
    58,160.06x = 1,633,157,167.22
  5. Step 5: Solve for x
    x = 1,633,157,167.22/58,160.06
  6. Step 6: Final answer
    x = 28,080.39

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.