Home / 52,261.64-72,121.20-28,388.12

Finding the Fourth Proportional to 52,261.64, 72,121.20 and 28,388.12

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Solution

The fourth proportional to 52,261.64, 72,121.20 and 28,388.12 is: 39,175.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,261.64 : 72,121.20 = 28,388.12 : x
  2. Step 2: Convert to fraction form
    52,261.64/72,121.20 = 28,388.12/x
  3. Step 3: Cross multiply
    52,261.64x = 72,121.20 × 28,388.12
  4. Step 4: Simplify right side
    52,261.64x = 2,047,385,280.14
  5. Step 5: Solve for x
    x = 2,047,385,280.14/52,261.64
  6. Step 6: Final answer
    x = 39,175.68

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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.