Home / 90,767.79-136,166.31-38,192.31

Finding the Fourth Proportional to 90,767.79, 136,166.31 and 38,192.31

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Solution

The fourth proportional to 90,767.79, 136,166.31 and 38,192.31 is: 57,294.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,767.79 : 136,166.31 = 38,192.31 : x
  2. Step 2: Convert to fraction form
    90,767.79/136,166.31 = 38,192.31/x
  3. Step 3: Cross multiply
    90,767.79x = 136,166.31 × 38,192.31
  4. Step 4: Simplify right side
    90,767.79x = 5,200,505,923.08
  5. Step 5: Solve for x
    x = 5,200,505,923.08/90,767.79
  6. Step 6: Final answer
    x = 57,294.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.