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Finding the Fourth Proportional to 77,809.52, 107,227.32 and 56,555.12

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Solution

The fourth proportional to 77,809.52, 107,227.32 and 56,555.12 is: 77,937.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,809.52 : 107,227.32 = 56,555.12 : x
  2. Step 2: Convert to fraction form
    77,809.52/107,227.32 = 56,555.12/x
  3. Step 3: Cross multiply
    77,809.52x = 107,227.32 × 56,555.12
  4. Step 4: Simplify right side
    77,809.52x = 6,064,253,949.88
  5. Step 5: Solve for x
    x = 6,064,253,949.88/77,809.52
  6. Step 6: Final answer
    x = 77,937.17

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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.