Home / 89,869.76-124,020.80-49,582.88

Finding the Fourth Proportional to 89,869.76, 124,020.80 and 49,582.88

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Solution

The fourth proportional to 89,869.76, 124,020.80 and 49,582.88 is: 68,424.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,869.76 : 124,020.80 = 49,582.88 : x
  2. Step 2: Convert to fraction form
    89,869.76/124,020.80 = 49,582.88/x
  3. Step 3: Cross multiply
    89,869.76x = 124,020.80 × 49,582.88
  4. Step 4: Simplify right side
    89,869.76x = 6,149,308,443.90
  5. Step 5: Solve for x
    x = 6,149,308,443.90/89,869.76
  6. Step 6: Final answer
    x = 68,424.67

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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.