Home / 74,260.13-102,485.45-40,732.61

Finding the Fourth Proportional to 74,260.13, 102,485.45 and 40,732.61

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Solution

The fourth proportional to 74,260.13, 102,485.45 and 40,732.61 is: 56,214.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,260.13 : 102,485.45 = 40,732.61 : x
  2. Step 2: Convert to fraction form
    74,260.13/102,485.45 = 40,732.61/x
  3. Step 3: Cross multiply
    74,260.13x = 102,485.45 × 40,732.61
  4. Step 4: Simplify right side
    74,260.13x = 4,174,499,454.93
  5. Step 5: Solve for x
    x = 4,174,499,454.93/74,260.13
  6. Step 6: Final answer
    x = 56,214.55

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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.