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Finding the Fourth Proportional to 64,120.77, 96,182.80 and 30,378.89

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Solution

The fourth proportional to 64,120.77, 96,182.80 and 30,378.89 is: 45,569.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,120.77 : 96,182.80 = 30,378.89 : x
  2. Step 2: Convert to fraction form
    64,120.77/96,182.80 = 30,378.89/x
  3. Step 3: Cross multiply
    64,120.77x = 96,182.80 × 30,378.89
  4. Step 4: Simplify right side
    64,120.77x = 2,921,926,324.57
  5. Step 5: Solve for x
    x = 2,921,926,324.57/64,120.77
  6. Step 6: Final answer
    x = 45,569.11

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1.5x scale

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.