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Finding the Fourth Proportional to 66,436.80, 99,652.80 and 26,992.80

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Solution

The fourth proportional to 66,436.80, 99,652.80 and 26,992.80 is: 40,488.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,436.80 : 99,652.80 = 26,992.80 : x
  2. Step 2: Convert to fraction form
    66,436.80/99,652.80 = 26,992.80/x
  3. Step 3: Cross multiply
    66,436.80x = 99,652.80 × 26,992.80
  4. Step 4: Simplify right side
    66,436.80x = 2,689,908,099.84
  5. Step 5: Solve for x
    x = 2,689,908,099.84/66,436.80
  6. Step 6: Final answer
    x = 40,488.22

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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.