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Finding the Fourth Proportional to 71,166.75, 98,210.03 and 38,901.57

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Solution

The fourth proportional to 71,166.75, 98,210.03 and 38,901.57 is: 53,684.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,166.75 : 98,210.03 = 38,901.57 : x
  2. Step 2: Convert to fraction form
    71,166.75/98,210.03 = 38,901.57/x
  3. Step 3: Cross multiply
    71,166.75x = 98,210.03 × 38,901.57
  4. Step 4: Simplify right side
    71,166.75x = 3,820,524,162.24
  5. Step 5: Solve for x
    x = 3,820,524,162.24/71,166.75
  6. Step 6: Final answer
    x = 53,684.12

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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.