Home / 83,427.90-125,144.93-42,890.57

Finding the Fourth Proportional to 83,427.90, 125,144.93 and 42,890.57

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Solution

The fourth proportional to 83,427.90, 125,144.93 and 42,890.57 is: 64,337.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,427.90 : 125,144.93 = 42,890.57 : x
  2. Step 2: Convert to fraction form
    83,427.90/125,144.93 = 42,890.57/x
  3. Step 3: Cross multiply
    83,427.90x = 125,144.93 × 42,890.57
  4. Step 4: Simplify right side
    83,427.90x = 5,367,536,858.51
  5. Step 5: Solve for x
    x = 5,367,536,858.51/83,427.90
  6. Step 6: Final answer
    x = 64,337.43

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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.