Home / 78,505.92-108,337.08-42,696.24

Finding the Fourth Proportional to 78,505.92, 108,337.08 and 42,696.24

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Solution

The fourth proportional to 78,505.92, 108,337.08 and 42,696.24 is: 58,920.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,505.92 : 108,337.08 = 42,696.24 : x
  2. Step 2: Convert to fraction form
    78,505.92/108,337.08 = 42,696.24/x
  3. Step 3: Cross multiply
    78,505.92x = 108,337.08 × 42,696.24
  4. Step 4: Simplify right side
    78,505.92x = 4,625,585,968.58
  5. Step 5: Solve for x
    x = 4,625,585,968.58/78,505.92
  6. Step 6: Final answer
    x = 58,920.22

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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.