Home / 90,812.75-136,231.03-30,002.82

Finding the Fourth Proportional to 90,812.75, 136,231.03 and 30,002.82

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Solution

The fourth proportional to 90,812.75, 136,231.03 and 30,002.82 is: 45,008.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,812.75 : 136,231.03 = 30,002.82 : x
  2. Step 2: Convert to fraction form
    90,812.75/136,231.03 = 30,002.82/x
  3. Step 3: Cross multiply
    90,812.75x = 136,231.03 × 30,002.82
  4. Step 4: Simplify right side
    90,812.75x = 4,087,315,331.51
  5. Step 5: Solve for x
    x = 4,087,315,331.51/90,812.75
  6. Step 6: Final answer
    x = 45,008.16

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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.