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Finding the Fourth Proportional to 71,089.35, 98,100.62 and 38,822.90

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Solution

The fourth proportional to 71,089.35, 98,100.62 and 38,822.90 is: 53,574.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,089.35 : 98,100.62 = 38,822.90 : x
  2. Step 2: Convert to fraction form
    71,089.35/98,100.62 = 38,822.90/x
  3. Step 3: Cross multiply
    71,089.35x = 98,100.62 × 38,822.90
  4. Step 4: Simplify right side
    71,089.35x = 3,808,550,021.17
  5. Step 5: Solve for x
    x = 3,808,550,021.17/71,089.35
  6. Step 6: Final answer
    x = 53,574.13

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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.