Home / 72,868.46-100,565.64-42,651.95

Finding the Fourth Proportional to 72,868.46, 100,565.64 and 42,651.95

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Solution

The fourth proportional to 72,868.46, 100,565.64 and 42,651.95 is: 58,863.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,868.46 : 100,565.64 = 42,651.95 : x
  2. Step 2: Convert to fraction form
    72,868.46/100,565.64 = 42,651.95/x
  3. Step 3: Cross multiply
    72,868.46x = 100,565.64 × 42,651.95
  4. Step 4: Simplify right side
    72,868.46x = 4,289,320,146.17
  5. Step 5: Solve for x
    x = 4,289,320,146.17/72,868.46
  6. Step 6: Final answer
    x = 58,863.88

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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.