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Finding the Fourth Proportional to 64,378.82, 88,821.78 and 37,515.18

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Solution

The fourth proportional to 64,378.82, 88,821.78 and 37,515.18 is: 51,758.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,378.82 : 88,821.78 = 37,515.18 : x
  2. Step 2: Convert to fraction form
    64,378.82/88,821.78 = 37,515.18/x
  3. Step 3: Cross multiply
    64,378.82x = 88,821.78 × 37,515.18
  4. Step 4: Simplify right side
    64,378.82x = 3,332,165,064.62
  5. Step 5: Solve for x
    x = 3,332,165,064.62/64,378.82
  6. Step 6: Final answer
    x = 51,758.72

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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.