Home / 88,158-121,660.80-49,916.94

Finding the Fourth Proportional to 88,158, 121,660.80 and 49,916.94

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Solution

The fourth proportional to 88,158, 121,660.80 and 49,916.94 is: 68,886.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,158 : 121,660.80 = 49,916.94 : x
  2. Step 2: Convert to fraction form
    88,158/121,660.80 = 49,916.94/x
  3. Step 3: Cross multiply
    88,158x = 121,660.80 × 49,916.94
  4. Step 4: Simplify right side
    88,158x = 6,072,934,853.95
  5. Step 5: Solve for x
    x = 6,072,934,853.95/88,158
  6. Step 6: Final answer
    x = 68,886.94

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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.