Home / 82,088.04-123,132.12-19,758.60

Finding the Fourth Proportional to 82,088.04, 123,132.12 and 19,758.60

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Solution

The fourth proportional to 82,088.04, 123,132.12 and 19,758.60 is: 29,637.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,088.04 : 123,132.12 = 19,758.60 : x
  2. Step 2: Convert to fraction form
    82,088.04/123,132.12 = 19,758.60/x
  3. Step 3: Cross multiply
    82,088.04x = 123,132.12 × 19,758.60
  4. Step 4: Simplify right side
    82,088.04x = 2,432,918,306.23
  5. Step 5: Solve for x
    x = 2,432,918,306.23/82,088.04
  6. Step 6: Final answer
    x = 29,637.91

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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.