Home / 51,160.16-76,739.70-19,995.14

Finding the Fourth Proportional to 51,160.16, 76,739.70 and 19,995.14

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Solution

The fourth proportional to 51,160.16, 76,739.70 and 19,995.14 is: 29,992.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,160.16 : 76,739.70 = 19,995.14 : x
  2. Step 2: Convert to fraction form
    51,160.16/76,739.70 = 19,995.14/x
  3. Step 3: Cross multiply
    51,160.16x = 76,739.70 × 19,995.14
  4. Step 4: Simplify right side
    51,160.16x = 1,534,420,661.36
  5. Step 5: Solve for x
    x = 1,534,420,661.36/51,160.16
  6. Step 6: Final answer
    x = 29,992.49

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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.