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Finding the Fourth Proportional to 90,167.94, 124,421.58 and 49,876.11

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Solution

The fourth proportional to 90,167.94, 124,421.58 and 49,876.11 is: 68,823.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,167.94 : 124,421.58 = 49,876.11 : x
  2. Step 2: Convert to fraction form
    90,167.94/124,421.58 = 49,876.11/x
  3. Step 3: Cross multiply
    90,167.94x = 124,421.58 × 49,876.11
  4. Step 4: Simplify right side
    90,167.94x = 6,205,664,410.45
  5. Step 5: Solve for x
    x = 6,205,664,410.45/90,167.94
  6. Step 6: Final answer
    x = 68,823.40

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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.