Home / 51,009.75-70,394.10-28,350.18

Finding the Fourth Proportional to 51,009.75, 70,394.10 and 28,350.18

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Solution

The fourth proportional to 51,009.75, 70,394.10 and 28,350.18 is: 39,123.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,009.75 : 70,394.10 = 28,350.18 : x
  2. Step 2: Convert to fraction form
    51,009.75/70,394.10 = 28,350.18/x
  3. Step 3: Cross multiply
    51,009.75x = 70,394.10 × 28,350.18
  4. Step 4: Simplify right side
    51,009.75x = 1,995,685,405.94
  5. Step 5: Solve for x
    x = 1,995,685,405.94/51,009.75
  6. Step 6: Final answer
    x = 39,123.61

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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.