Home / 78,505.14-108,347.52-46,691.58

Finding the Fourth Proportional to 78,505.14, 108,347.52 and 46,691.58

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Solution

The fourth proportional to 78,505.14, 108,347.52 and 46,691.58 is: 64,440.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,505.14 : 108,347.52 = 46,691.58 : x
  2. Step 2: Convert to fraction form
    78,505.14/108,347.52 = 46,691.58/x
  3. Step 3: Cross multiply
    78,505.14x = 108,347.52 × 46,691.58
  4. Step 4: Simplify right side
    78,505.14x = 5,058,916,897.88
  5. Step 5: Solve for x
    x = 5,058,916,897.88/78,505.14
  6. Step 6: Final answer
    x = 64,440.58

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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.