Home / 86,505.12-129,775.62-36,585.64

Finding the Fourth Proportional to 86,505.12, 129,775.62 and 36,585.64

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Solution

The fourth proportional to 86,505.12, 129,775.62 and 36,585.64 is: 54,886.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,505.12 : 129,775.62 = 36,585.64 : x
  2. Step 2: Convert to fraction form
    86,505.12/129,775.62 = 36,585.64/x
  3. Step 3: Cross multiply
    86,505.12x = 129,775.62 × 36,585.64
  4. Step 4: Simplify right side
    86,505.12x = 4,747,924,114.10
  5. Step 5: Solve for x
    x = 4,747,924,114.10/86,505.12
  6. Step 6: Final answer
    x = 54,886.05

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1.5x scale

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.