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Finding the Fourth Proportional to 69,728.88, 96,226.20 and 37,898.40

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Solution

The fourth proportional to 69,728.88, 96,226.20 and 37,898.40 is: 52,299.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,728.88 : 96,226.20 = 37,898.40 : x
  2. Step 2: Convert to fraction form
    69,728.88/96,226.20 = 37,898.40/x
  3. Step 3: Cross multiply
    69,728.88x = 96,226.20 × 37,898.40
  4. Step 4: Simplify right side
    69,728.88x = 3,646,819,018.08
  5. Step 5: Solve for x
    x = 3,646,819,018.08/69,728.88
  6. Step 6: Final answer
    x = 52,299.98

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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.