Home / 52,451.53-72,383.12-28,578.20

Finding the Fourth Proportional to 52,451.53, 72,383.12 and 28,578.20

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Solution

The fourth proportional to 52,451.53, 72,383.12 and 28,578.20 is: 39,437.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,451.53 : 72,383.12 = 28,578.20 : x
  2. Step 2: Convert to fraction form
    52,451.53/72,383.12 = 28,578.20/x
  3. Step 3: Cross multiply
    52,451.53x = 72,383.12 × 28,578.20
  4. Step 4: Simplify right side
    52,451.53x = 2,068,579,289.50
  5. Step 5: Solve for x
    x = 2,068,579,289.50/52,451.53
  6. Step 6: Final answer
    x = 39,437.92

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Double scale
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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.