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Finding the Fourth Proportional to 69,873.50, 96,432.72 and 39,666.98

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Solution

The fourth proportional to 69,873.50, 96,432.72 and 39,666.98 is: 54,744.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,873.50 : 96,432.72 = 39,666.98 : x
  2. Step 2: Convert to fraction form
    69,873.50/96,432.72 = 39,666.98/x
  3. Step 3: Cross multiply
    69,873.50x = 96,432.72 × 39,666.98
  4. Step 4: Simplify right side
    69,873.50x = 3,825,194,775.59
  5. Step 5: Solve for x
    x = 3,825,194,775.59/69,873.50
  6. Step 6: Final answer
    x = 54,744.57

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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.