Home / 90,189.54-124,466.04-54,391.14

Finding the Fourth Proportional to 90,189.54, 124,466.04 and 54,391.14

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Solution

The fourth proportional to 90,189.54, 124,466.04 and 54,391.14 is: 75,062.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,189.54 : 124,466.04 = 54,391.14 : x
  2. Step 2: Convert to fraction form
    90,189.54/124,466.04 = 54,391.14/x
  3. Step 3: Cross multiply
    90,189.54x = 124,466.04 × 54,391.14
  4. Step 4: Simplify right side
    90,189.54x = 6,769,849,806.89
  5. Step 5: Solve for x
    x = 6,769,849,806.89/90,189.54
  6. Step 6: Final answer
    x = 75,062.47

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1.5x scale

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.