Home / 89,064.29-122,908.65-48,780.56

Finding the Fourth Proportional to 89,064.29, 122,908.65 and 48,780.56

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Solution

The fourth proportional to 89,064.29, 122,908.65 and 48,780.56 is: 67,317.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,064.29 : 122,908.65 = 48,780.56 : x
  2. Step 2: Convert to fraction form
    89,064.29/122,908.65 = 48,780.56/x
  3. Step 3: Cross multiply
    89,064.29x = 122,908.65 × 48,780.56
  4. Step 4: Simplify right side
    89,064.29x = 5,995,552,775.84
  5. Step 5: Solve for x
    x = 5,995,552,775.84/89,064.29
  6. Step 6: Final answer
    x = 67,317.13

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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.