Home / 56,372.32-77,789.52-31,221.28

Finding the Fourth Proportional to 56,372.32, 77,789.52 and 31,221.28

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Solution

The fourth proportional to 56,372.32, 77,789.52 and 31,221.28 is: 43,083.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,372.32 : 77,789.52 = 31,221.28 : x
  2. Step 2: Convert to fraction form
    56,372.32/77,789.52 = 31,221.28/x
  3. Step 3: Cross multiply
    56,372.32x = 77,789.52 × 31,221.28
  4. Step 4: Simplify right side
    56,372.32x = 2,428,688,384.99
  5. Step 5: Solve for x
    x = 2,428,688,384.99/56,372.32
  6. Step 6: Final answer
    x = 43,083.00

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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.