Home / 48,821.40-67,365.54-28,674

Finding the Fourth Proportional to 48,821.40, 67,365.54 and 28,674

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Solution

The fourth proportional to 48,821.40, 67,365.54 and 28,674 is: 39,565.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,821.40 : 67,365.54 = 28,674 : x
  2. Step 2: Convert to fraction form
    48,821.40/67,365.54 = 28,674/x
  3. Step 3: Cross multiply
    48,821.40x = 67,365.54 × 28,674
  4. Step 4: Simplify right side
    48,821.40x = 1,931,639,493.96
  5. Step 5: Solve for x
    x = 1,931,639,493.96/48,821.40
  6. Step 6: Final answer
    x = 39,565.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.