Home / 74,399.17-102,671.59-40,407.97

Finding the Fourth Proportional to 74,399.17, 102,671.59 and 40,407.97

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Solution

The fourth proportional to 74,399.17, 102,671.59 and 40,407.97 is: 55,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,399.17 : 102,671.59 = 40,407.97 : x
  2. Step 2: Convert to fraction form
    74,399.17/102,671.59 = 40,407.97/x
  3. Step 3: Cross multiply
    74,399.17x = 102,671.59 × 40,407.97
  4. Step 4: Simplify right side
    74,399.17x = 4,148,750,841.56
  5. Step 5: Solve for x
    x = 4,148,750,841.56/74,399.17
  6. Step 6: Final answer
    x = 55,763.40

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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.