Home / 83,441.36-115,149.20-45,715.60

Finding the Fourth Proportional to 83,441.36, 115,149.20 and 45,715.60

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Solution

The fourth proportional to 83,441.36, 115,149.20 and 45,715.60 is: 63,087.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,441.36 : 115,149.20 = 45,715.60 : x
  2. Step 2: Convert to fraction form
    83,441.36/115,149.20 = 45,715.60/x
  3. Step 3: Cross multiply
    83,441.36x = 115,149.20 × 45,715.60
  4. Step 4: Simplify right side
    83,441.36x = 5,264,114,767.52
  5. Step 5: Solve for x
    x = 5,264,114,767.52/83,441.36
  6. Step 6: Final answer
    x = 63,087.60

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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.