Home / 90,825.30-136,199.07-28,500.66

Finding the Fourth Proportional to 90,825.30, 136,199.07 and 28,500.66

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Solution

The fourth proportional to 90,825.30, 136,199.07 and 28,500.66 is: 42,738.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,825.30 : 136,199.07 = 28,500.66 : x
  2. Step 2: Convert to fraction form
    90,825.30/136,199.07 = 28,500.66/x
  3. Step 3: Cross multiply
    90,825.30x = 136,199.07 × 28,500.66
  4. Step 4: Simplify right side
    90,825.30x = 3,881,763,386.39
  5. Step 5: Solve for x
    x = 3,881,763,386.39/90,825.30
  6. Step 6: Final answer
    x = 42,738.79

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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.