Home / 52,640.22-72,643.55-28,441.20

Finding the Fourth Proportional to 52,640.22, 72,643.55 and 28,441.20

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Solution

The fourth proportional to 52,640.22, 72,643.55 and 28,441.20 is: 39,248.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,640.22 : 72,643.55 = 28,441.20 : x
  2. Step 2: Convert to fraction form
    52,640.22/72,643.55 = 28,441.20/x
  3. Step 3: Cross multiply
    52,640.22x = 72,643.55 × 28,441.20
  4. Step 4: Simplify right side
    52,640.22x = 2,066,069,592.05
  5. Step 5: Solve for x
    x = 2,066,069,592.05/52,640.22
  6. Step 6: Final answer
    x = 39,248.88

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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.