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Finding the Fourth Proportional to 101,377.78, 139,895.68 and 56,053.04

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Solution

The fourth proportional to 101,377.78, 139,895.68 and 56,053.04 is: 77,350.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,377.78 : 139,895.68 = 56,053.04 : x
  2. Step 2: Convert to fraction form
    101,377.78/139,895.68 = 56,053.04/x
  3. Step 3: Cross multiply
    101,377.78x = 139,895.68 × 56,053.04
  4. Step 4: Simplify right side
    101,377.78x = 7,841,577,963.46
  5. Step 5: Solve for x
    x = 7,841,577,963.46/101,377.78
  6. Step 6: Final answer
    x = 77,350.07

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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.