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Finding the Fourth Proportional to 69,871.66, 96,423.10 and 38,040.77

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Solution

The fourth proportional to 69,871.66, 96,423.10 and 38,040.77 is: 52,496.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,871.66 : 96,423.10 = 38,040.77 : x
  2. Step 2: Convert to fraction form
    69,871.66/96,423.10 = 38,040.77/x
  3. Step 3: Cross multiply
    69,871.66x = 96,423.10 × 38,040.77
  4. Step 4: Simplify right side
    69,871.66x = 3,668,009,115.74
  5. Step 5: Solve for x
    x = 3,668,009,115.74/69,871.66
  6. Step 6: Final answer
    x = 52,496.38

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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.