Home / 74,881.06-103,337.13-40,891.30

Finding the Fourth Proportional to 74,881.06, 103,337.13 and 40,891.30

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Solution

The fourth proportional to 74,881.06, 103,337.13 and 40,891.30 is: 56,430.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,881.06 : 103,337.13 = 40,891.30 : x
  2. Step 2: Convert to fraction form
    74,881.06/103,337.13 = 40,891.30/x
  3. Step 3: Cross multiply
    74,881.06x = 103,337.13 × 40,891.30
  4. Step 4: Simplify right side
    74,881.06x = 4,225,589,583.97
  5. Step 5: Solve for x
    x = 4,225,589,583.97/74,881.06
  6. Step 6: Final answer
    x = 56,430.69

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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.