Home / 86,245.46-129,368.22-38,805.14

Finding the Fourth Proportional to 86,245.46, 129,368.22 and 38,805.14

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Solution

The fourth proportional to 86,245.46, 129,368.22 and 38,805.14 is: 58,207.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,245.46 : 129,368.22 = 38,805.14 : x
  2. Step 2: Convert to fraction form
    86,245.46/129,368.22 = 38,805.14/x
  3. Step 3: Cross multiply
    86,245.46x = 129,368.22 × 38,805.14
  4. Step 4: Simplify right side
    86,245.46x = 5,020,151,888.65
  5. Step 5: Solve for x
    x = 5,020,151,888.65/86,245.46
  6. Step 6: Final answer
    x = 58,207.72

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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.