Home / 267,586.07-401,438.12-78,061.25

Finding the Fourth Proportional to 267,586.07, 401,438.12 and 78,061.25

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Solution

The fourth proportional to 267,586.07, 401,438.12 and 78,061.25 is: 117,109.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,586.07 : 401,438.12 = 78,061.25 : x
  2. Step 2: Convert to fraction form
    267,586.07/401,438.12 = 78,061.25/x
  3. Step 3: Cross multiply
    267,586.07x = 401,438.12 × 78,061.25
  4. Step 4: Simplify right side
    267,586.07x = 31,336,761,054.54
  5. Step 5: Solve for x
    x = 31,336,761,054.54/267,586.07
  6. Step 6: Final answer
    x = 117,109.09

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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.