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Finding the Fourth Proportional to 70,248.76, 96,945.96 and 40,038.85

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Solution

The fourth proportional to 70,248.76, 96,945.96 and 40,038.85 is: 55,255.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,248.76 : 96,945.96 = 40,038.85 : x
  2. Step 2: Convert to fraction form
    70,248.76/96,945.96 = 40,038.85/x
  3. Step 3: Cross multiply
    70,248.76x = 96,945.96 × 40,038.85
  4. Step 4: Simplify right side
    70,248.76x = 3,881,604,750.55
  5. Step 5: Solve for x
    x = 3,881,604,750.55/70,248.76
  6. Step 6: Final answer
    x = 55,255.14

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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.