Home / 74,259.46-102,478.29-40,267.92

Finding the Fourth Proportional to 74,259.46, 102,478.29 and 40,267.92

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Solution

The fourth proportional to 74,259.46, 102,478.29 and 40,267.92 is: 55,569.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,259.46 : 102,478.29 = 40,267.92 : x
  2. Step 2: Convert to fraction form
    74,259.46/102,478.29 = 40,267.92/x
  3. Step 3: Cross multiply
    74,259.46x = 102,478.29 × 40,267.92
  4. Step 4: Simplify right side
    74,259.46x = 4,126,587,583.46
  5. Step 5: Solve for x
    x = 4,126,587,583.46/74,259.46
  6. Step 6: Final answer
    x = 55,569.86

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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.