Home / 52,390.38-72,300.12-28,518.66

Finding the Fourth Proportional to 52,390.38, 72,300.12 and 28,518.66

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Solution

The fourth proportional to 52,390.38, 72,300.12 and 28,518.66 is: 39,356.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,390.38 : 72,300.12 = 28,518.66 : x
  2. Step 2: Convert to fraction form
    52,390.38/72,300.12 = 28,518.66/x
  3. Step 3: Cross multiply
    52,390.38x = 72,300.12 × 28,518.66
  4. Step 4: Simplify right side
    52,390.38x = 2,061,902,540.24
  5. Step 5: Solve for x
    x = 2,061,902,540.24/52,390.38
  6. Step 6: Final answer
    x = 39,356.51

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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.