Home / 82,541.12-123,853.86-39,312.95

Finding the Fourth Proportional to 82,541.12, 123,853.86 and 39,312.95

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Solution

The fourth proportional to 82,541.12, 123,853.86 and 39,312.95 is: 58,989.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,541.12 : 123,853.86 = 39,312.95 : x
  2. Step 2: Convert to fraction form
    82,541.12/123,853.86 = 39,312.95/x
  3. Step 3: Cross multiply
    82,541.12x = 123,853.86 × 39,312.95
  4. Step 4: Simplify right side
    82,541.12x = 4,869,059,986.22
  5. Step 5: Solve for x
    x = 4,869,059,986.22/82,541.12
  6. Step 6: Final answer
    x = 58,989.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.