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Finding the Fourth Proportional to 70,108.56, 96,751.17 and 38,278.71

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Solution

The fourth proportional to 70,108.56, 96,751.17 and 38,278.71 is: 52,825.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,108.56 : 96,751.17 = 38,278.71 : x
  2. Step 2: Convert to fraction form
    70,108.56/96,751.17 = 38,278.71/x
  3. Step 3: Cross multiply
    70,108.56x = 96,751.17 × 38,278.71
  4. Step 4: Simplify right side
    70,108.56x = 3,703,509,978.59
  5. Step 5: Solve for x
    x = 3,703,509,978.59/70,108.56
  6. Step 6: Final answer
    x = 52,825.36

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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.