Home / 86,917.08-130,350.49-39,505.75

Finding the Fourth Proportional to 86,917.08, 130,350.49 and 39,505.75

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Solution

The fourth proportional to 86,917.08, 130,350.49 and 39,505.75 is: 59,247.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,917.08 : 130,350.49 = 39,505.75 : x
  2. Step 2: Convert to fraction form
    86,917.08/130,350.49 = 39,505.75/x
  3. Step 3: Cross multiply
    86,917.08x = 130,350.49 × 39,505.75
  4. Step 4: Simplify right side
    86,917.08x = 5,149,593,870.32
  5. Step 5: Solve for x
    x = 5,149,593,870.32/86,917.08
  6. Step 6: Final answer
    x = 59,247.20

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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.