Home / 42,452.56-63,679.02-12,870.66

Finding the Fourth Proportional to 42,452.56, 63,679.02 and 12,870.66

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Solution

The fourth proportional to 42,452.56, 63,679.02 and 12,870.66 is: 19,306.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,452.56 : 63,679.02 = 12,870.66 : x
  2. Step 2: Convert to fraction form
    42,452.56/63,679.02 = 12,870.66/x
  3. Step 3: Cross multiply
    42,452.56x = 63,679.02 × 12,870.66
  4. Step 4: Simplify right side
    42,452.56x = 819,590,632.80
  5. Step 5: Solve for x
    x = 819,590,632.80/42,452.56
  6. Step 6: Final answer
    x = 19,306.04

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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.