Home / 99,712.78-149,444.44-49,806.81

Finding the Fourth Proportional to 99,712.78, 149,444.44 and 49,806.81

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Solution

The fourth proportional to 99,712.78, 149,444.44 and 49,806.81 is: 74,647.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,712.78 : 149,444.44 = 49,806.81 : x
  2. Step 2: Convert to fraction form
    99,712.78/149,444.44 = 49,806.81/x
  3. Step 3: Cross multiply
    99,712.78x = 149,444.44 × 49,806.81
  4. Step 4: Simplify right side
    99,712.78x = 7,443,350,984.28
  5. Step 5: Solve for x
    x = 7,443,350,984.28/99,712.78
  6. Step 6: Final answer
    x = 74,647.91

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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.