Home / 57,639.90-86,200.65-48,308.70

Finding the Fourth Proportional to 57,639.90, 86,200.65 and 48,308.70

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Solution

The fourth proportional to 57,639.90, 86,200.65 and 48,308.70 is: 72,245.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,639.90 : 86,200.65 = 48,308.70 : x
  2. Step 2: Convert to fraction form
    57,639.90/86,200.65 = 48,308.70/x
  3. Step 3: Cross multiply
    57,639.90x = 86,200.65 × 48,308.70
  4. Step 4: Simplify right side
    57,639.90x = 4,164,241,340.66
  5. Step 5: Solve for x
    x = 4,164,241,340.66/57,639.90
  6. Step 6: Final answer
    x = 72,245.81

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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.