Home / 52,636.90-72,639.11-28,763.57

Finding the Fourth Proportional to 52,636.90, 72,639.11 and 28,763.57

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Solution

The fourth proportional to 52,636.90, 72,639.11 and 28,763.57 is: 39,693.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,636.90 : 72,639.11 = 28,763.57 : x
  2. Step 2: Convert to fraction form
    52,636.90/72,639.11 = 28,763.57/x
  3. Step 3: Cross multiply
    52,636.90x = 72,639.11 × 28,763.57
  4. Step 4: Simplify right side
    52,636.90x = 2,089,360,125.22
  5. Step 5: Solve for x
    x = 2,089,360,125.22/52,636.90
  6. Step 6: Final answer
    x = 39,693.83

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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.