Home / 90,126.20-124,376.82-49,292.75

Finding the Fourth Proportional to 90,126.20, 124,376.82 and 49,292.75

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Solution

The fourth proportional to 90,126.20, 124,376.82 and 49,292.75 is: 68,025.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,126.20 : 124,376.82 = 49,292.75 : x
  2. Step 2: Convert to fraction form
    90,126.20/124,376.82 = 49,292.75/x
  3. Step 3: Cross multiply
    90,126.20x = 124,376.82 × 49,292.75
  4. Step 4: Simplify right side
    90,126.20x = 6,130,875,494.06
  5. Step 5: Solve for x
    x = 6,130,875,494.06/90,126.20
  6. Step 6: Final answer
    x = 68,025.45

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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.