Home / 76,520.08-105,600.42-42,529.24

Finding the Fourth Proportional to 76,520.08, 105,600.42 and 42,529.24

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Solution

The fourth proportional to 76,520.08, 105,600.42 and 42,529.24 is: 58,691.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,520.08 : 105,600.42 = 42,529.24 : x
  2. Step 2: Convert to fraction form
    76,520.08/105,600.42 = 42,529.24/x
  3. Step 3: Cross multiply
    76,520.08x = 105,600.42 × 42,529.24
  4. Step 4: Simplify right side
    76,520.08x = 4,491,105,606.28
  5. Step 5: Solve for x
    x = 4,491,105,606.28/76,520.08
  6. Step 6: Final answer
    x = 58,691.86

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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.