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Finding the Fourth Proportional to 81,714.79, 112,754.13 and 45,897.94

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Solution

The fourth proportional to 81,714.79, 112,754.13 and 45,897.94 is: 63,332.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,714.79 : 112,754.13 = 45,897.94 : x
  2. Step 2: Convert to fraction form
    81,714.79/112,754.13 = 45,897.94/x
  3. Step 3: Cross multiply
    81,714.79x = 112,754.13 × 45,897.94
  4. Step 4: Simplify right side
    81,714.79x = 5,175,182,293.49
  5. Step 5: Solve for x
    x = 5,175,182,293.49/81,714.79
  6. Step 6: Final answer
    x = 63,332.26

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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.