Home / 57,712.35-86,557.59-20,263.62

Finding the Fourth Proportional to 57,712.35, 86,557.59 and 20,263.62

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Solution

The fourth proportional to 57,712.35, 86,557.59 and 20,263.62 is: 30,391.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,712.35 : 86,557.59 = 20,263.62 : x
  2. Step 2: Convert to fraction form
    57,712.35/86,557.59 = 20,263.62/x
  3. Step 3: Cross multiply
    57,712.35x = 86,557.59 × 20,263.62
  4. Step 4: Simplify right side
    57,712.35x = 1,753,970,111.88
  5. Step 5: Solve for x
    x = 1,753,970,111.88/57,712.35
  6. Step 6: Final answer
    x = 30,391.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.