Home / 78,761.41-118,126-22,586.47

Finding the Fourth Proportional to 78,761.41, 118,126 and 22,586.47

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Solution

The fourth proportional to 78,761.41, 118,126 and 22,586.47 is: 33,875.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,761.41 : 118,126 = 22,586.47 : x
  2. Step 2: Convert to fraction form
    78,761.41/118,126 = 22,586.47/x
  3. Step 3: Cross multiply
    78,761.41x = 118,126 × 22,586.47
  4. Step 4: Simplify right side
    78,761.41x = 2,668,049,355.22
  5. Step 5: Solve for x
    x = 2,668,049,355.22/78,761.41
  6. Step 6: Final answer
    x = 33,875.08

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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.