Home / 86,550.72-129,839.40-36,631.08

Finding the Fourth Proportional to 86,550.72, 129,839.40 and 36,631.08

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Solution

The fourth proportional to 86,550.72, 129,839.40 and 36,631.08 is: 54,952.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,550.72 : 129,839.40 = 36,631.08 : x
  2. Step 2: Convert to fraction form
    86,550.72/129,839.40 = 36,631.08/x
  3. Step 3: Cross multiply
    86,550.72x = 129,839.40 × 36,631.08
  4. Step 4: Simplify right side
    86,550.72x = 4,756,157,448.55
  5. Step 5: Solve for x
    x = 4,756,157,448.55/86,550.72
  6. Step 6: Final answer
    x = 54,952.26

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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.