Home / 70,419.20-97,178.13-38,153.66

Finding the Fourth Proportional to 70,419.20, 97,178.13 and 38,153.66

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Solution

The fourth proportional to 70,419.20, 97,178.13 and 38,153.66 is: 52,651.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,419.20 : 97,178.13 = 38,153.66 : x
  2. Step 2: Convert to fraction form
    70,419.20/97,178.13 = 38,153.66/x
  3. Step 3: Cross multiply
    70,419.20x = 97,178.13 × 38,153.66
  4. Step 4: Simplify right side
    70,419.20x = 3,707,700,845.57
  5. Step 5: Solve for x
    x = 3,707,700,845.57/70,419.20
  6. Step 6: Final answer
    x = 52,651.85

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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.