Home / 66,686.76-92,061.16-51,545.21

Finding the Fourth Proportional to 66,686.76, 92,061.16 and 51,545.21

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Solution

The fourth proportional to 66,686.76, 92,061.16 and 51,545.21 is: 71,158.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,686.76 : 92,061.16 = 51,545.21 : x
  2. Step 2: Convert to fraction form
    66,686.76/92,061.16 = 51,545.21/x
  3. Step 3: Cross multiply
    66,686.76x = 92,061.16 × 51,545.21
  4. Step 4: Simplify right side
    66,686.76x = 4,745,311,235.87
  5. Step 5: Solve for x
    x = 4,745,311,235.87/66,686.76
  6. Step 6: Final answer
    x = 71,158.22

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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.