Home / 90,119.12-124,366.52-49,833.66

Finding the Fourth Proportional to 90,119.12, 124,366.52 and 49,833.66

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Solution

The fourth proportional to 90,119.12, 124,366.52 and 49,833.66 is: 68,771.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,119.12 : 124,366.52 = 49,833.66 : x
  2. Step 2: Convert to fraction form
    90,119.12/124,366.52 = 49,833.66/x
  3. Step 3: Cross multiply
    90,119.12x = 124,366.52 × 49,833.66
  4. Step 4: Simplify right side
    90,119.12x = 6,197,638,623.89
  5. Step 5: Solve for x
    x = 6,197,638,623.89/90,119.12
  6. Step 6: Final answer
    x = 68,771.63

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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.