Home / 90,412.13-124,767.64-52,171.22

Finding the Fourth Proportional to 90,412.13, 124,767.64 and 52,171.22

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Solution

The fourth proportional to 90,412.13, 124,767.64 and 52,171.22 is: 71,995.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,412.13 : 124,767.64 = 52,171.22 : x
  2. Step 2: Convert to fraction form
    90,412.13/124,767.64 = 52,171.22/x
  3. Step 3: Cross multiply
    90,412.13x = 124,767.64 × 52,171.22
  4. Step 4: Simplify right side
    90,412.13x = 6,509,280,372.45
  5. Step 5: Solve for x
    x = 6,509,280,372.45/90,412.13
  6. Step 6: Final answer
    x = 71,995.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.