Home / 90,106.40-124,335.86-49,814.58

Finding the Fourth Proportional to 90,106.40, 124,335.86 and 49,814.58

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Solution

The fourth proportional to 90,106.40, 124,335.86 and 49,814.58 is: 68,738.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,106.40 : 124,335.86 = 49,814.58 : x
  2. Step 2: Convert to fraction form
    90,106.40/124,335.86 = 49,814.58/x
  3. Step 3: Cross multiply
    90,106.40x = 124,335.86 × 49,814.58
  4. Step 4: Simplify right side
    90,106.40x = 6,193,738,644.84
  5. Step 5: Solve for x
    x = 6,193,738,644.84/90,106.40
  6. Step 6: Final answer
    x = 68,738.05

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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.