Home / 89,812.74-123,938.73-49,528.20

Finding the Fourth Proportional to 89,812.74, 123,938.73 and 49,528.20

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Solution

The fourth proportional to 89,812.74, 123,938.73 and 49,528.20 is: 68,347.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,812.74 : 123,938.73 = 49,528.20 : x
  2. Step 2: Convert to fraction form
    89,812.74/123,938.73 = 49,528.20/x
  3. Step 3: Cross multiply
    89,812.74x = 123,938.73 × 49,528.20
  4. Step 4: Simplify right side
    89,812.74x = 6,138,462,207.19
  5. Step 5: Solve for x
    x = 6,138,462,207.19/89,812.74
  6. Step 6: Final answer
    x = 68,347.34

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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.