Home / 86,566.84-119,449.02-54,779.20

Finding the Fourth Proportional to 86,566.84, 119,449.02 and 54,779.20

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Solution

The fourth proportional to 86,566.84, 119,449.02 and 54,779.20 is: 75,586.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,566.84 : 119,449.02 = 54,779.20 : x
  2. Step 2: Convert to fraction form
    86,566.84/119,449.02 = 54,779.20/x
  3. Step 3: Cross multiply
    86,566.84x = 119,449.02 × 54,779.20
  4. Step 4: Simplify right side
    86,566.84x = 6,543,321,756.38
  5. Step 5: Solve for x
    x = 6,543,321,756.38/86,566.84
  6. Step 6: Final answer
    x = 75,586.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.