Home / 71,152.90-98,191.31-38,888.17

Finding the Fourth Proportional to 71,152.90, 98,191.31 and 38,888.17

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Solution

The fourth proportional to 71,152.90, 98,191.31 and 38,888.17 is: 53,665.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,152.90 : 98,191.31 = 38,888.17 : x
  2. Step 2: Convert to fraction form
    71,152.90/98,191.31 = 38,888.17/x
  3. Step 3: Cross multiply
    71,152.90x = 98,191.31 × 38,888.17
  4. Step 4: Simplify right side
    71,152.90x = 3,818,479,915.88
  5. Step 5: Solve for x
    x = 3,818,479,915.88/71,152.90
  6. Step 6: Final answer
    x = 53,665.84

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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.