Home / 74,431.57-102,717.51-42,610.72

Finding the Fourth Proportional to 74,431.57, 102,717.51 and 42,610.72

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Solution

The fourth proportional to 74,431.57, 102,717.51 and 42,610.72 is: 58,803.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,431.57 : 102,717.51 = 42,610.72 : x
  2. Step 2: Convert to fraction form
    74,431.57/102,717.51 = 42,610.72/x
  3. Step 3: Cross multiply
    74,431.57x = 102,717.51 × 42,610.72
  4. Step 4: Simplify right side
    74,431.57x = 4,376,867,057.71
  5. Step 5: Solve for x
    x = 4,376,867,057.71/74,431.57
  6. Step 6: Final answer
    x = 58,803.91

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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.