Home / 98,328.40-147,514.20-31,757.20

Finding the Fourth Proportional to 98,328.40, 147,514.20 and 31,757.20

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Solution

The fourth proportional to 98,328.40, 147,514.20 and 31,757.20 is: 47,642.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,328.40 : 147,514.20 = 31,757.20 : x
  2. Step 2: Convert to fraction form
    98,328.40/147,514.20 = 31,757.20/x
  3. Step 3: Cross multiply
    98,328.40x = 147,514.20 × 31,757.20
  4. Step 4: Simplify right side
    98,328.40x = 4,684,637,952.24
  5. Step 5: Solve for x
    x = 4,684,637,952.24/98,328.40
  6. Step 6: Final answer
    x = 47,642.78

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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.