Home / 98,427.91-147,665.39-31,868.11

Finding the Fourth Proportional to 98,427.91, 147,665.39 and 31,868.11

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Solution

The fourth proportional to 98,427.91, 147,665.39 and 31,868.11 is: 47,809.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,427.91 : 147,665.39 = 31,868.11 : x
  2. Step 2: Convert to fraction form
    98,427.91/147,665.39 = 31,868.11/x
  3. Step 3: Cross multiply
    98,427.91x = 147,665.39 × 31,868.11
  4. Step 4: Simplify right side
    98,427.91x = 4,705,816,916.95
  5. Step 5: Solve for x
    x = 4,705,816,916.95/98,427.91
  6. Step 6: Final answer
    x = 47,809.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.