Home / 83,921.85-115,786.04-47,617.29

Finding the Fourth Proportional to 83,921.85, 115,786.04 and 47,617.29

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Solution

The fourth proportional to 83,921.85, 115,786.04 and 47,617.29 is: 65,697.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,921.85 : 115,786.04 = 47,617.29 : x
  2. Step 2: Convert to fraction form
    83,921.85/115,786.04 = 47,617.29/x
  3. Step 3: Cross multiply
    83,921.85x = 115,786.04 × 47,617.29
  4. Step 4: Simplify right side
    83,921.85x = 5,513,417,206.55
  5. Step 5: Solve for x
    x = 5,513,417,206.55/83,921.85
  6. Step 6: Final answer
    x = 65,697.04

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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.