Home / 91,576.12-137,399.52-35,400.64

Finding the Fourth Proportional to 91,576.12, 137,399.52 and 35,400.64

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Solution

The fourth proportional to 91,576.12, 137,399.52 and 35,400.64 is: 53,114.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,576.12 : 137,399.52 = 35,400.64 : x
  2. Step 2: Convert to fraction form
    91,576.12/137,399.52 = 35,400.64/x
  3. Step 3: Cross multiply
    91,576.12x = 137,399.52 × 35,400.64
  4. Step 4: Simplify right side
    91,576.12x = 4,864,030,943.69
  5. Step 5: Solve for x
    x = 4,864,030,943.69/91,576.12
  6. Step 6: Final answer
    x = 53,114.62

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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.