Home / 90,106.97-124,342.09-49,818.31

Finding the Fourth Proportional to 90,106.97, 124,342.09 and 49,818.31

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Solution

The fourth proportional to 90,106.97, 124,342.09 and 49,818.31 is: 68,746.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,106.97 : 124,342.09 = 49,818.31 : x
  2. Step 2: Convert to fraction form
    90,106.97/124,342.09 = 49,818.31/x
  3. Step 3: Cross multiply
    90,106.97x = 124,342.09 × 49,818.31
  4. Step 4: Simplify right side
    90,106.97x = 6,194,512,350.27
  5. Step 5: Solve for x
    x = 6,194,512,350.27/90,106.97
  6. Step 6: Final answer
    x = 68,746.21

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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.