Home / 66,966.18-92,407.21-39,737.56

Finding the Fourth Proportional to 66,966.18, 92,407.21 and 39,737.56

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Solution

The fourth proportional to 66,966.18, 92,407.21 and 39,737.56 is: 54,834.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,966.18 : 92,407.21 = 39,737.56 : x
  2. Step 2: Convert to fraction form
    66,966.18/92,407.21 = 39,737.56/x
  3. Step 3: Cross multiply
    66,966.18x = 92,407.21 × 39,737.56
  4. Step 4: Simplify right side
    66,966.18x = 3,672,036,853.12
  5. Step 5: Solve for x
    x = 3,672,036,853.12/66,966.18
  6. Step 6: Final answer
    x = 54,834.20

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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.