Home / 90,922.16-136,382.97-40,943.74

Finding the Fourth Proportional to 90,922.16, 136,382.97 and 40,943.74

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Solution

The fourth proportional to 90,922.16, 136,382.97 and 40,943.74 is: 61,415.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,922.16 : 136,382.97 = 40,943.74 : x
  2. Step 2: Convert to fraction form
    90,922.16/136,382.97 = 40,943.74/x
  3. Step 3: Cross multiply
    90,922.16x = 136,382.97 × 40,943.74
  4. Step 4: Simplify right side
    90,922.16x = 5,584,028,864.11
  5. Step 5: Solve for x
    x = 5,584,028,864.11/90,922.16
  6. Step 6: Final answer
    x = 61,415.49

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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.