Home / 57,711.90-86,567.85-54,212.70

Finding the Fourth Proportional to 57,711.90, 86,567.85 and 54,212.70

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Solution

The fourth proportional to 57,711.90, 86,567.85 and 54,212.70 is: 81,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,711.90 : 86,567.85 = 54,212.70 : x
  2. Step 2: Convert to fraction form
    57,711.90/86,567.85 = 54,212.70/x
  3. Step 3: Cross multiply
    57,711.90x = 86,567.85 × 54,212.70
  4. Step 4: Simplify right side
    57,711.90x = 4,693,076,881.70
  5. Step 5: Solve for x
    x = 4,693,076,881.70/57,711.90
  6. Step 6: Final answer
    x = 81,319.05

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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.