Home / 89,029.40-133,479.30-36,411.80

Finding the Fourth Proportional to 89,029.40, 133,479.30 and 36,411.80

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Solution

The fourth proportional to 89,029.40, 133,479.30 and 36,411.80 is: 54,591.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,029.40 : 133,479.30 = 36,411.80 : x
  2. Step 2: Convert to fraction form
    89,029.40/133,479.30 = 36,411.80/x
  3. Step 3: Cross multiply
    89,029.40x = 133,479.30 × 36,411.80
  4. Step 4: Simplify right side
    89,029.40x = 4,860,221,575.74
  5. Step 5: Solve for x
    x = 4,860,221,575.74/89,029.40
  6. Step 6: Final answer
    x = 54,591.20

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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.