Home / 85,405.41-128,126.19-32,097.87

Finding the Fourth Proportional to 85,405.41, 128,126.19 and 32,097.87

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Solution

The fourth proportional to 85,405.41, 128,126.19 and 32,097.87 is: 48,153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,405.41 : 128,126.19 = 32,097.87 : x
  2. Step 2: Convert to fraction form
    85,405.41/128,126.19 = 32,097.87/x
  3. Step 3: Cross multiply
    85,405.41x = 128,126.19 × 32,097.87
  4. Step 4: Simplify right side
    85,405.41x = 4,112,577,790.22
  5. Step 5: Solve for x
    x = 4,112,577,790.22/85,405.41
  6. Step 6: Final answer
    x = 48,153.60

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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.