Home / 83,312.40-124,967.44-20,132

Finding the Fourth Proportional to 83,312.40, 124,967.44 and 20,132

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Solution

The fourth proportional to 83,312.40, 124,967.44 and 20,132 is: 30,197.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,312.40 : 124,967.44 = 20,132 : x
  2. Step 2: Convert to fraction form
    83,312.40/124,967.44 = 20,132/x
  3. Step 3: Cross multiply
    83,312.40x = 124,967.44 × 20,132
  4. Step 4: Simplify right side
    83,312.40x = 2,515,844,502.08
  5. Step 5: Solve for x
    x = 2,515,844,502.08/83,312.40
  6. Step 6: Final answer
    x = 30,197.72

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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.