Home / 48,309.75-66,644.78-34,170.39

Finding the Fourth Proportional to 48,309.75, 66,644.78 and 34,170.39

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Solution

The fourth proportional to 48,309.75, 66,644.78 and 34,170.39 is: 47,139.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,309.75 : 66,644.78 = 34,170.39 : x
  2. Step 2: Convert to fraction form
    48,309.75/66,644.78 = 34,170.39/x
  3. Step 3: Cross multiply
    48,309.75x = 66,644.78 × 34,170.39
  4. Step 4: Simplify right side
    48,309.75x = 2,277,277,953.21
  5. Step 5: Solve for x
    x = 2,277,277,953.21/48,309.75
  6. Step 6: Final answer
    x = 47,139.10

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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.