Home / 89,748.32-134,638.49-29,780.39

Finding the Fourth Proportional to 89,748.32, 134,638.49 and 29,780.39

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Solution

The fourth proportional to 89,748.32, 134,638.49 and 29,780.39 is: 44,675.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,748.32 : 134,638.49 = 29,780.39 : x
  2. Step 2: Convert to fraction form
    89,748.32/134,638.49 = 29,780.39/x
  3. Step 3: Cross multiply
    89,748.32x = 134,638.49 × 29,780.39
  4. Step 4: Simplify right side
    89,748.32x = 4,009,585,919.12
  5. Step 5: Solve for x
    x = 4,009,585,919.12/89,748.32
  6. Step 6: Final answer
    x = 44,675.89

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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.