Home / 89,026.40-133,539.60-68,031.20

Finding the Fourth Proportional to 89,026.40, 133,539.60 and 68,031.20

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Solution

The fourth proportional to 89,026.40, 133,539.60 and 68,031.20 is: 102,046.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,026.40 : 133,539.60 = 68,031.20 : x
  2. Step 2: Convert to fraction form
    89,026.40/133,539.60 = 68,031.20/x
  3. Step 3: Cross multiply
    89,026.40x = 133,539.60 × 68,031.20
  4. Step 4: Simplify right side
    89,026.40x = 9,084,859,235.52
  5. Step 5: Solve for x
    x = 9,084,859,235.52/89,026.40
  6. Step 6: Final answer
    x = 102,046.80

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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.