Home / 90,744.57-124,905.24-66,502.89

Finding the Fourth Proportional to 90,744.57, 124,905.24 and 66,502.89

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Solution

The fourth proportional to 90,744.57, 124,905.24 and 66,502.89 is: 91,537.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,744.57 : 124,905.24 = 66,502.89 : x
  2. Step 2: Convert to fraction form
    90,744.57/124,905.24 = 66,502.89/x
  3. Step 3: Cross multiply
    90,744.57x = 124,905.24 × 66,502.89
  4. Step 4: Simplify right side
    90,744.57x = 8,306,559,436.14
  5. Step 5: Solve for x
    x = 8,306,559,436.14/90,744.57
  6. Step 6: Final answer
    x = 91,537.81

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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.