Home / 90,569.96-124,984.11-54,291.90

Finding the Fourth Proportional to 90,569.96, 124,984.11 and 54,291.90

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Solution

The fourth proportional to 90,569.96, 124,984.11 and 54,291.90 is: 74,921.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,569.96 : 124,984.11 = 54,291.90 : x
  2. Step 2: Convert to fraction form
    90,569.96/124,984.11 = 54,291.90/x
  3. Step 3: Cross multiply
    90,569.96x = 124,984.11 × 54,291.90
  4. Step 4: Simplify right side
    90,569.96x = 6,785,624,801.71
  5. Step 5: Solve for x
    x = 6,785,624,801.71/90,569.96
  6. Step 6: Final answer
    x = 74,921.36

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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.