Home / 83,409.12-115,104.24-47,599.56

Finding the Fourth Proportional to 83,409.12, 115,104.24 and 47,599.56

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Solution

The fourth proportional to 83,409.12, 115,104.24 and 47,599.56 is: 65,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,409.12 : 115,104.24 = 47,599.56 : x
  2. Step 2: Convert to fraction form
    83,409.12/115,104.24 = 47,599.56/x
  3. Step 3: Cross multiply
    83,409.12x = 115,104.24 × 47,599.56
  4. Step 4: Simplify right side
    83,409.12x = 5,478,911,178.13
  5. Step 5: Solve for x
    x = 5,478,911,178.13/83,409.12
  6. Step 6: Final answer
    x = 65,687.20

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1.5x scale

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.