Home / 89,929.96-134,977.88-45,587.80

Finding the Fourth Proportional to 89,929.96, 134,977.88 and 45,587.80

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Solution

The fourth proportional to 89,929.96, 134,977.88 and 45,587.80 is: 68,423.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,929.96 : 134,977.88 = 45,587.80 : x
  2. Step 2: Convert to fraction form
    89,929.96/134,977.88 = 45,587.80/x
  3. Step 3: Cross multiply
    89,929.96x = 134,977.88 × 45,587.80
  4. Step 4: Simplify right side
    89,929.96x = 6,153,344,597.86
  5. Step 5: Solve for x
    x = 6,153,344,597.86/89,929.96
  6. Step 6: Final answer
    x = 68,423.74

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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.