Home / 83,788.45-125,643.08-30,443.24

Finding the Fourth Proportional to 83,788.45, 125,643.08 and 30,443.24

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Solution

The fourth proportional to 83,788.45, 125,643.08 and 30,443.24 is: 45,650.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,788.45 : 125,643.08 = 30,443.24 : x
  2. Step 2: Convert to fraction form
    83,788.45/125,643.08 = 30,443.24/x
  3. Step 3: Cross multiply
    83,788.45x = 125,643.08 × 30,443.24
  4. Step 4: Simplify right side
    83,788.45x = 3,824,982,829.00
  5. Step 5: Solve for x
    x = 3,824,982,829.00/83,788.45
  6. Step 6: Final answer
    x = 45,650.48

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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.