Home / 72,053,330.31-99,359,279.58-61,633,841.06

Finding the Fourth Proportional to 72,053,330.31, 99,359,279.58 and 61,633,841.06

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Solution

The fourth proportional to 72,053,330.31, 99,359,279.58 and 61,633,841.06 is: 84,991,131.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,053,330.31 : 99,359,279.58 = 61,633,841.06 : x
  2. Step 2: Convert to fraction form
    72,053,330.31/99,359,279.58 = 61,633,841.06/x
  3. Step 3: Cross multiply
    72,053,330.31x = 99,359,279.58 × 61,633,841.06
  4. Step 4: Simplify right side
    72,053,330.31x = 6,123,894,044,973,027
  5. Step 5: Solve for x
    x = 6,123,894,044,973,027/72,053,330.31
  6. Step 6: Final answer
    x = 84,991,131.13

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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.