Home / 42,876.74-64,204.95-28,042.40

Finding the Fourth Proportional to 42,876.74, 64,204.95 and 28,042.40

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Solution

The fourth proportional to 42,876.74, 64,204.95 and 28,042.40 is: 41,991.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,876.74 : 64,204.95 = 28,042.40 : x
  2. Step 2: Convert to fraction form
    42,876.74/64,204.95 = 28,042.40/x
  3. Step 3: Cross multiply
    42,876.74x = 64,204.95 × 28,042.40
  4. Step 4: Simplify right side
    42,876.74x = 1,800,460,757.04
  5. Step 5: Solve for x
    x = 1,800,460,757.04/42,876.74
  6. Step 6: Final answer
    x = 41,991.55

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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.