Home / 74,337.06-102,585.90-40,345.85

Finding the Fourth Proportional to 74,337.06, 102,585.90 and 40,345.85

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Solution

The fourth proportional to 74,337.06, 102,585.90 and 40,345.85 is: 55,677.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,337.06 : 102,585.90 = 40,345.85 : x
  2. Step 2: Convert to fraction form
    74,337.06/102,585.90 = 40,345.85/x
  3. Step 3: Cross multiply
    74,337.06x = 102,585.90 × 40,345.85
  4. Step 4: Simplify right side
    74,337.06x = 4,138,914,820.59
  5. Step 5: Solve for x
    x = 4,138,914,820.59/74,337.06
  6. Step 6: Final answer
    x = 55,677.68

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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.