Home / 76,532.38-105,616.11-42,543.70

Finding the Fourth Proportional to 76,532.38, 105,616.11 and 42,543.70

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Solution

The fourth proportional to 76,532.38, 105,616.11 and 42,543.70 is: 58,711.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,532.38 : 105,616.11 = 42,543.70 : x
  2. Step 2: Convert to fraction form
    76,532.38/105,616.11 = 42,543.70/x
  3. Step 3: Cross multiply
    76,532.38x = 105,616.11 × 42,543.70
  4. Step 4: Simplify right side
    76,532.38x = 4,493,300,099.01
  5. Step 5: Solve for x
    x = 4,493,300,099.01/76,532.38
  6. Step 6: Final answer
    x = 58,711.10

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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.