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Finding the Fourth Proportional to 71,089.19, 98,103.12 and 38,824.25

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Solution

The fourth proportional to 71,089.19, 98,103.12 and 38,824.25 is: 53,577.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,089.19 : 98,103.12 = 38,824.25 : x
  2. Step 2: Convert to fraction form
    71,089.19/98,103.12 = 38,824.25/x
  3. Step 3: Cross multiply
    71,089.19x = 98,103.12 × 38,824.25
  4. Step 4: Simplify right side
    71,089.19x = 3,808,780,056.66
  5. Step 5: Solve for x
    x = 3,808,780,056.66/71,089.19
  6. Step 6: Final answer
    x = 53,577.49

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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.