Home / 71,308.24-98,374.47-42,998.20

Finding the Fourth Proportional to 71,308.24, 98,374.47 and 42,998.20

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Solution

The fourth proportional to 71,308.24, 98,374.47 and 42,998.20 is: 59,318.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,308.24 : 98,374.47 = 42,998.20 : x
  2. Step 2: Convert to fraction form
    71,308.24/98,374.47 = 42,998.20/x
  3. Step 3: Cross multiply
    71,308.24x = 98,374.47 × 42,998.20
  4. Step 4: Simplify right side
    71,308.24x = 4,229,925,135.95
  5. Step 5: Solve for x
    x = 4,229,925,135.95/71,308.24
  6. Step 6: Final answer
    x = 59,318.88

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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.