Home / 78,473.43-108,294.02-42,663.47

Finding the Fourth Proportional to 78,473.43, 108,294.02 and 42,663.47

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Solution

The fourth proportional to 78,473.43, 108,294.02 and 42,663.47 is: 58,875.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,473.43 : 108,294.02 = 42,663.47 : x
  2. Step 2: Convert to fraction form
    78,473.43/108,294.02 = 42,663.47/x
  3. Step 3: Cross multiply
    78,473.43x = 108,294.02 × 42,663.47
  4. Step 4: Simplify right side
    78,473.43x = 4,620,197,918.66
  5. Step 5: Solve for x
    x = 4,620,197,918.66/78,473.43
  6. Step 6: Final answer
    x = 58,875.95

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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.