Home / 66,431.53-99,652.16-26,989.39

Finding the Fourth Proportional to 66,431.53, 99,652.16 and 26,989.39

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Solution

The fourth proportional to 66,431.53, 99,652.16 and 26,989.39 is: 40,486.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,431.53 : 99,652.16 = 26,989.39 : x
  2. Step 2: Convert to fraction form
    66,431.53/99,652.16 = 26,989.39/x
  3. Step 3: Cross multiply
    66,431.53x = 99,652.16 × 26,989.39
  4. Step 4: Simplify right side
    66,431.53x = 2,689,551,010.58
  5. Step 5: Solve for x
    x = 2,689,551,010.58/66,431.53
  6. Step 6: Final answer
    x = 40,486.06

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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.