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Finding the Fourth Proportional to 70,101.95, 96,737.31 and 39,884.45

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Solution

The fourth proportional to 70,101.95, 96,737.31 and 39,884.45 is: 55,038.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,101.95 : 96,737.31 = 39,884.45 : x
  2. Step 2: Convert to fraction form
    70,101.95/96,737.31 = 39,884.45/x
  3. Step 3: Cross multiply
    70,101.95x = 96,737.31 × 39,884.45
  4. Step 4: Simplify right side
    70,101.95x = 3,858,313,920.14
  5. Step 5: Solve for x
    x = 3,858,313,920.14/70,101.95
  6. Step 6: Final answer
    x = 55,038.61

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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.