Home / 45,150.90-67,830.12-31,854.48

Finding the Fourth Proportional to 45,150.90, 67,830.12 and 31,854.48

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Solution

The fourth proportional to 45,150.90, 67,830.12 and 31,854.48 is: 47,854.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,150.90 : 67,830.12 = 31,854.48 : x
  2. Step 2: Convert to fraction form
    45,150.90/67,830.12 = 31,854.48/x
  3. Step 3: Cross multiply
    45,150.90x = 67,830.12 × 31,854.48
  4. Step 4: Simplify right side
    45,150.90x = 2,160,693,200.94
  5. Step 5: Solve for x
    x = 2,160,693,200.94/45,150.90
  6. Step 6: Final answer
    x = 47,854.93

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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.