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Finding the Fourth Proportional to 78,367.52, 108,074.04 and 60,433.76

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Solution

The fourth proportional to 78,367.52, 108,074.04 and 60,433.76 is: 83,342.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,367.52 : 108,074.04 = 60,433.76 : x
  2. Step 2: Convert to fraction form
    78,367.52/108,074.04 = 60,433.76/x
  3. Step 3: Cross multiply
    78,367.52x = 108,074.04 × 60,433.76
  4. Step 4: Simplify right side
    78,367.52x = 6,531,320,595.59
  5. Step 5: Solve for x
    x = 6,531,320,595.59/78,367.52
  6. Step 6: Final answer
    x = 83,342.19

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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.