Home / 76,537.28-105,618.16-42,545.69

Finding the Fourth Proportional to 76,537.28, 105,618.16 and 42,545.69

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Solution

The fourth proportional to 76,537.28, 105,618.16 and 42,545.69 is: 58,711.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,537.28 : 105,618.16 = 42,545.69 : x
  2. Step 2: Convert to fraction form
    76,537.28/105,618.16 = 42,545.69/x
  3. Step 3: Cross multiply
    76,537.28x = 105,618.16 × 42,545.69
  4. Step 4: Simplify right side
    76,537.28x = 4,493,597,281.00
  5. Step 5: Solve for x
    x = 4,493,597,281.00/76,537.28
  6. Step 6: Final answer
    x = 58,711.23

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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.