Home / 89,438.45-123,424.66-51,197.79

Finding the Fourth Proportional to 89,438.45, 123,424.66 and 51,197.79

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Solution

The fourth proportional to 89,438.45, 123,424.66 and 51,197.79 is: 70,652.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,438.45 : 123,424.66 = 51,197.79 : x
  2. Step 2: Convert to fraction form
    89,438.45/123,424.66 = 51,197.79/x
  3. Step 3: Cross multiply
    89,438.45x = 123,424.66 × 51,197.79
  4. Step 4: Simplify right side
    89,438.45x = 6,319,069,386.95
  5. Step 5: Solve for x
    x = 6,319,069,386.95/89,438.45
  6. Step 6: Final answer
    x = 70,652.72

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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.