Home / 72,729.34-100,367.85-42,517.24

Finding the Fourth Proportional to 72,729.34, 100,367.85 and 42,517.24

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Solution

The fourth proportional to 72,729.34, 100,367.85 and 42,517.24 is: 58,674.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,729.34 : 100,367.85 = 42,517.24 : x
  2. Step 2: Convert to fraction form
    72,729.34/100,367.85 = 42,517.24/x
  3. Step 3: Cross multiply
    72,729.34x = 100,367.85 × 42,517.24
  4. Step 4: Simplify right side
    72,729.34x = 4,267,363,966.73
  5. Step 5: Solve for x
    x = 4,267,363,966.73/72,729.34
  6. Step 6: Final answer
    x = 58,674.59

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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.