Home / 71,270.29-98,353.88-39,442.15

Finding the Fourth Proportional to 71,270.29, 98,353.88 and 39,442.15

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Solution

The fourth proportional to 71,270.29, 98,353.88 and 39,442.15 is: 54,430.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,270.29 : 98,353.88 = 39,442.15 : x
  2. Step 2: Convert to fraction form
    71,270.29/98,353.88 = 39,442.15/x
  3. Step 3: Cross multiply
    71,270.29x = 98,353.88 × 39,442.15
  4. Step 4: Simplify right side
    71,270.29x = 3,879,288,488.04
  5. Step 5: Solve for x
    x = 3,879,288,488.04/71,270.29
  6. Step 6: Final answer
    x = 54,430.65

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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.