Home / 89,944.60-124,139.78-53,648.38

Finding the Fourth Proportional to 89,944.60, 124,139.78 and 53,648.38

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Solution

The fourth proportional to 89,944.60, 124,139.78 and 53,648.38 is: 74,044.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,944.60 : 124,139.78 = 53,648.38 : x
  2. Step 2: Convert to fraction form
    89,944.60/124,139.78 = 53,648.38/x
  3. Step 3: Cross multiply
    89,944.60x = 124,139.78 × 53,648.38
  4. Step 4: Simplify right side
    89,944.60x = 6,659,898,090.56
  5. Step 5: Solve for x
    x = 6,659,898,090.56/89,944.60
  6. Step 6: Final answer
    x = 74,044.45

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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.