Home / 78,193.23-107,906.27-42,382.95

Finding the Fourth Proportional to 78,193.23, 107,906.27 and 42,382.95

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Solution

The fourth proportional to 78,193.23, 107,906.27 and 42,382.95 is: 58,488.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,193.23 : 107,906.27 = 42,382.95 : x
  2. Step 2: Convert to fraction form
    78,193.23/107,906.27 = 42,382.95/x
  3. Step 3: Cross multiply
    78,193.23x = 107,906.27 × 42,382.95
  4. Step 4: Simplify right side
    78,193.23x = 4,573,385,834.18
  5. Step 5: Solve for x
    x = 4,573,385,834.18/78,193.23
  6. Step 6: Final answer
    x = 58,488.26

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1.5x scale

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.