Home / 90,308.75-124,624.67-49,472.53

Finding the Fourth Proportional to 90,308.75, 124,624.67 and 49,472.53

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Solution

The fourth proportional to 90,308.75, 124,624.67 and 49,472.53 is: 68,271.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,308.75 : 124,624.67 = 49,472.53 : x
  2. Step 2: Convert to fraction form
    90,308.75/124,624.67 = 49,472.53/x
  3. Step 3: Cross multiply
    90,308.75x = 124,624.67 × 49,472.53
  4. Step 4: Simplify right side
    90,308.75x = 6,165,497,166.39
  5. Step 5: Solve for x
    x = 6,165,497,166.39/90,308.75
  6. Step 6: Final answer
    x = 68,271.32

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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.