Home / 52,639.92-72,641.40-28,766.52

Finding the Fourth Proportional to 52,639.92, 72,641.40 and 28,766.52

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Solution

The fourth proportional to 52,639.92, 72,641.40 and 28,766.52 is: 39,696.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,639.92 : 72,641.40 = 28,766.52 : x
  2. Step 2: Convert to fraction form
    52,639.92/72,641.40 = 28,766.52/x
  3. Step 3: Cross multiply
    52,639.92x = 72,641.40 × 28,766.52
  4. Step 4: Simplify right side
    52,639.92x = 2,089,640,285.93
  5. Step 5: Solve for x
    x = 2,089,640,285.93/52,639.92
  6. Step 6: Final answer
    x = 39,696.87

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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.