Home / 89,315.76-123,255.43-48,479.89

Finding the Fourth Proportional to 89,315.76, 123,255.43 and 48,479.89

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Solution

The fourth proportional to 89,315.76, 123,255.43 and 48,479.89 is: 66,902.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,315.76 : 123,255.43 = 48,479.89 : x
  2. Step 2: Convert to fraction form
    89,315.76/123,255.43 = 48,479.89/x
  3. Step 3: Cross multiply
    89,315.76x = 123,255.43 × 48,479.89
  4. Step 4: Simplify right side
    89,315.76x = 5,975,409,688.30
  5. Step 5: Solve for x
    x = 5,975,409,688.30/89,315.76
  6. Step 6: Final answer
    x = 66,902.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.