Home / 91,977.81-137,891.49-47,617.23

Finding the Fourth Proportional to 91,977.81, 137,891.49 and 47,617.23

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Solution

The fourth proportional to 91,977.81, 137,891.49 and 47,617.23 is: 71,386.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,977.81 : 137,891.49 = 47,617.23 : x
  2. Step 2: Convert to fraction form
    91,977.81/137,891.49 = 47,617.23/x
  3. Step 3: Cross multiply
    91,977.81x = 137,891.49 × 47,617.23
  4. Step 4: Simplify right side
    91,977.81x = 6,566,010,794.37
  5. Step 5: Solve for x
    x = 6,566,010,794.37/91,977.81
  6. Step 6: Final answer
    x = 71,386.90

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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.