Home / 82,454.60-123,536.10-69,915.80

Finding the Fourth Proportional to 82,454.60, 123,536.10 and 69,915.80

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Solution

The fourth proportional to 82,454.60, 123,536.10 and 69,915.80 is: 104,750.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,454.60 : 123,536.10 = 69,915.80 : x
  2. Step 2: Convert to fraction form
    82,454.60/123,536.10 = 69,915.80/x
  3. Step 3: Cross multiply
    82,454.60x = 123,536.10 × 69,915.80
  4. Step 4: Simplify right side
    82,454.60x = 8,637,125,260.38
  5. Step 5: Solve for x
    x = 8,637,125,260.38/82,454.60
  6. Step 6: Final answer
    x = 104,750.07

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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.