Home / 52,631.30-72,636.12-28,761.53

Finding the Fourth Proportional to 52,631.30, 72,636.12 and 28,761.53

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Solution

The fourth proportional to 52,631.30, 72,636.12 and 28,761.53 is: 39,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,631.30 : 72,636.12 = 28,761.53 : x
  2. Step 2: Convert to fraction form
    52,631.30/72,636.12 = 28,761.53/x
  3. Step 3: Cross multiply
    52,631.30x = 72,636.12 × 28,761.53
  4. Step 4: Simplify right side
    52,631.30x = 2,089,125,581.28
  5. Step 5: Solve for x
    x = 2,089,125,581.28/52,631.30
  6. Step 6: Final answer
    x = 39,693.60

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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.