Home / 71,427.40-98,565.78-39,596.20

Finding the Fourth Proportional to 71,427.40, 98,565.78 and 39,596.20

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Solution

The fourth proportional to 71,427.40, 98,565.78 and 39,596.20 is: 54,640.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,427.40 : 98,565.78 = 39,596.20 : x
  2. Step 2: Convert to fraction form
    71,427.40/98,565.78 = 39,596.20/x
  3. Step 3: Cross multiply
    71,427.40x = 98,565.78 × 39,596.20
  4. Step 4: Simplify right side
    71,427.40x = 3,902,830,338.04
  5. Step 5: Solve for x
    x = 3,902,830,338.04/71,427.40
  6. Step 6: Final answer
    x = 54,640.52

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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.