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Finding the Fourth Proportional to 69,877.57, 96,490.98 and 67,618.03

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Solution

The fourth proportional to 69,877.57, 96,490.98 and 67,618.03 is: 93,370.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,877.57 : 96,490.98 = 67,618.03 : x
  2. Step 2: Convert to fraction form
    69,877.57/96,490.98 = 67,618.03/x
  3. Step 3: Cross multiply
    69,877.57x = 96,490.98 × 67,618.03
  4. Step 4: Simplify right side
    69,877.57x = 6,524,529,980.37
  5. Step 5: Solve for x
    x = 6,524,529,980.37/69,877.57
  6. Step 6: Final answer
    x = 93,370.88

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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.