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Finding the Fourth Proportional to 70,250.76, 96,948.72 and 40,040.85

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Solution

The fourth proportional to 70,250.76, 96,948.72 and 40,040.85 is: 55,257.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,250.76 : 96,948.72 = 40,040.85 : x
  2. Step 2: Convert to fraction form
    70,250.76/96,948.72 = 40,040.85/x
  3. Step 3: Cross multiply
    70,250.76x = 96,948.72 × 40,040.85
  4. Step 4: Simplify right side
    70,250.76x = 3,881,909,155.21
  5. Step 5: Solve for x
    x = 3,881,909,155.21/70,250.76
  6. Step 6: Final answer
    x = 55,257.90

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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.