Home / 51,042.90-70,439.40-28,383.96

Finding the Fourth Proportional to 51,042.90, 70,439.40 and 28,383.96

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Solution

The fourth proportional to 51,042.90, 70,439.40 and 28,383.96 is: 39,169.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,042.90 : 70,439.40 = 28,383.96 : x
  2. Step 2: Convert to fraction form
    51,042.90/70,439.40 = 28,383.96/x
  3. Step 3: Cross multiply
    51,042.90x = 70,439.40 × 28,383.96
  4. Step 4: Simplify right side
    51,042.90x = 1,999,349,112.02
  5. Step 5: Solve for x
    x = 1,999,349,112.02/51,042.90
  6. Step 6: Final answer
    x = 39,169.97

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1.5x scale

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.