Home / 56,151.72-77,489.73-31,001.22

Finding the Fourth Proportional to 56,151.72, 77,489.73 and 31,001.22

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Solution

The fourth proportional to 56,151.72, 77,489.73 and 31,001.22 is: 42,781.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,151.72 : 77,489.73 = 31,001.22 : x
  2. Step 2: Convert to fraction form
    56,151.72/77,489.73 = 31,001.22/x
  3. Step 3: Cross multiply
    56,151.72x = 77,489.73 × 31,001.22
  4. Step 4: Simplify right side
    56,151.72x = 2,402,276,167.47
  5. Step 5: Solve for x
    x = 2,402,276,167.47/56,151.72
  6. Step 6: Final answer
    x = 42,781.88

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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.