Home / 109,039.60-163,586.40-49,862.80

Finding the Fourth Proportional to 109,039.60, 163,586.40 and 49,862.80

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Solution

The fourth proportional to 109,039.60, 163,586.40 and 49,862.80 is: 74,806.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,039.60 : 163,586.40 = 49,862.80 : x
  2. Step 2: Convert to fraction form
    109,039.60/163,586.40 = 49,862.80/x
  3. Step 3: Cross multiply
    109,039.60x = 163,586.40 × 49,862.80
  4. Step 4: Simplify right side
    109,039.60x = 8,156,875,945.92
  5. Step 5: Solve for x
    x = 8,156,875,945.92/109,039.60
  6. Step 6: Final answer
    x = 74,806.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.