Home / 86,449.40-129,666.80-48,891.32

Finding the Fourth Proportional to 86,449.40, 129,666.80 and 48,891.32

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Solution

The fourth proportional to 86,449.40, 129,666.80 and 48,891.32 is: 73,332.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,449.40 : 129,666.80 = 48,891.32 : x
  2. Step 2: Convert to fraction form
    86,449.40/129,666.80 = 48,891.32/x
  3. Step 3: Cross multiply
    86,449.40x = 129,666.80 × 48,891.32
  4. Step 4: Simplify right side
    86,449.40x = 6,339,581,199.50
  5. Step 5: Solve for x
    x = 6,339,581,199.50/86,449.40
  6. Step 6: Final answer
    x = 73,332.85

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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.