Home / 78,687.45-118,013.36-22,526.91

Finding the Fourth Proportional to 78,687.45, 118,013.36 and 22,526.91

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Solution

The fourth proportional to 78,687.45, 118,013.36 and 22,526.91 is: 33,785.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,687.45 : 118,013.36 = 22,526.91 : x
  2. Step 2: Convert to fraction form
    78,687.45/118,013.36 = 22,526.91/x
  3. Step 3: Cross multiply
    78,687.45x = 118,013.36 × 22,526.91
  4. Step 4: Simplify right side
    78,687.45x = 2,658,476,226.88
  5. Step 5: Solve for x
    x = 2,658,476,226.88/78,687.45
  6. Step 6: Final answer
    x = 33,785.26

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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.