Home / 74,020.96-102,120.24-47,158.66

Finding the Fourth Proportional to 74,020.96, 102,120.24 and 47,158.66

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Solution

The fourth proportional to 74,020.96, 102,120.24 and 47,158.66 is: 65,060.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,020.96 : 102,120.24 = 47,158.66 : x
  2. Step 2: Convert to fraction form
    74,020.96/102,120.24 = 47,158.66/x
  3. Step 3: Cross multiply
    74,020.96x = 102,120.24 × 47,158.66
  4. Step 4: Simplify right side
    74,020.96x = 4,815,853,677.28
  5. Step 5: Solve for x
    x = 4,815,853,677.28/74,020.96
  6. Step 6: Final answer
    x = 65,060.68

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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.