Home / 52,639.39-72,641.16-28,766.21

Finding the Fourth Proportional to 52,639.39, 72,641.16 and 28,766.21

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Solution

The fourth proportional to 52,639.39, 72,641.16 and 28,766.21 is: 39,696.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,639.39 : 72,641.16 = 28,766.21 : x
  2. Step 2: Convert to fraction form
    52,639.39/72,641.16 = 28,766.21/x
  3. Step 3: Cross multiply
    52,639.39x = 72,641.16 × 28,766.21
  4. Step 4: Simplify right side
    52,639.39x = 2,089,610,863.20
  5. Step 5: Solve for x
    x = 2,089,610,863.20/52,639.39
  6. Step 6: Final answer
    x = 39,696.72

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1.5x scale

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.