Home / 70,487.20-97,276.64-38,660.68

Finding the Fourth Proportional to 70,487.20, 97,276.64 and 38,660.68

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Solution

The fourth proportional to 70,487.20, 97,276.64 and 38,660.68 is: 53,354.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,487.20 : 97,276.64 = 38,660.68 : x
  2. Step 2: Convert to fraction form
    70,487.20/97,276.64 = 38,660.68/x
  3. Step 3: Cross multiply
    70,487.20x = 97,276.64 × 38,660.68
  4. Step 4: Simplify right side
    70,487.20x = 3,760,781,050.52
  5. Step 5: Solve for x
    x = 3,760,781,050.52/70,487.20
  6. Step 6: Final answer
    x = 53,354.10

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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.