Home / 85,254.12-127,890.75-69,592.47

Finding the Fourth Proportional to 85,254.12, 127,890.75 and 69,592.47

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Solution

The fourth proportional to 85,254.12, 127,890.75 and 69,592.47 is: 104,396.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,254.12 : 127,890.75 = 69,592.47 : x
  2. Step 2: Convert to fraction form
    85,254.12/127,890.75 = 69,592.47/x
  3. Step 3: Cross multiply
    85,254.12x = 127,890.75 × 69,592.47
  4. Step 4: Simplify right side
    85,254.12x = 8,900,233,182.65
  5. Step 5: Solve for x
    x = 8,900,233,182.65/85,254.12
  6. Step 6: Final answer
    x = 104,396.52

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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.