Home / 78,497.17-108,326.82-42,687.52

Finding the Fourth Proportional to 78,497.17, 108,326.82 and 42,687.52

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Solution

The fourth proportional to 78,497.17, 108,326.82 and 42,687.52 is: 58,909.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,497.17 : 108,326.82 = 42,687.52 : x
  2. Step 2: Convert to fraction form
    78,497.17/108,326.82 = 42,687.52/x
  3. Step 3: Cross multiply
    78,497.17x = 108,326.82 × 42,687.52
  4. Step 4: Simplify right side
    78,497.17x = 4,624,203,295.29
  5. Step 5: Solve for x
    x = 4,624,203,295.29/78,497.17
  6. Step 6: Final answer
    x = 58,909.17

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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.