Home / 57,639.74-86,498.55-20,200.19

Finding the Fourth Proportional to 57,639.74, 86,498.55 and 20,200.19

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Solution

The fourth proportional to 57,639.74, 86,498.55 and 20,200.19 is: 30,313.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,639.74 : 86,498.55 = 20,200.19 : x
  2. Step 2: Convert to fraction form
    57,639.74/86,498.55 = 20,200.19/x
  3. Step 3: Cross multiply
    57,639.74x = 86,498.55 × 20,200.19
  4. Step 4: Simplify right side
    57,639.74x = 1,747,286,712.23
  5. Step 5: Solve for x
    x = 1,747,286,712.23/57,639.74
  6. Step 6: Final answer
    x = 30,313.93

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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.