Home / 90,115.84-124,357.64-49,828.58

Finding the Fourth Proportional to 90,115.84, 124,357.64 and 49,828.58

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Solution

The fourth proportional to 90,115.84, 124,357.64 and 49,828.58 is: 68,762.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,115.84 : 124,357.64 = 49,828.58 : x
  2. Step 2: Convert to fraction form
    90,115.84/124,357.64 = 49,828.58/x
  3. Step 3: Cross multiply
    90,115.84x = 124,357.64 × 49,828.58
  4. Step 4: Simplify right side
    90,115.84x = 6,196,564,613.35
  5. Step 5: Solve for x
    x = 6,196,564,613.35/90,115.84
  6. Step 6: Final answer
    x = 68,762.21

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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.