Home / 57,709.23-86,552.90-20,260.50

Finding the Fourth Proportional to 57,709.23, 86,552.90 and 20,260.50

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Solution

The fourth proportional to 57,709.23, 86,552.90 and 20,260.50 is: 30,386.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,709.23 : 86,552.90 = 20,260.50 : x
  2. Step 2: Convert to fraction form
    57,709.23/86,552.90 = 20,260.50/x
  3. Step 3: Cross multiply
    57,709.23x = 86,552.90 × 20,260.50
  4. Step 4: Simplify right side
    57,709.23x = 1,753,604,648.34
  5. Step 5: Solve for x
    x = 1,753,604,648.34/57,709.23
  6. Step 6: Final answer
    x = 30,386.90

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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.