Home / 91,119.87-136,681.04-31,957.27

Finding the Fourth Proportional to 91,119.87, 136,681.04 and 31,957.27

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Solution

The fourth proportional to 91,119.87, 136,681.04 and 31,957.27 is: 47,936.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,119.87 : 136,681.04 = 31,957.27 : x
  2. Step 2: Convert to fraction form
    91,119.87/136,681.04 = 31,957.27/x
  3. Step 3: Cross multiply
    91,119.87x = 136,681.04 × 31,957.27
  4. Step 4: Simplify right side
    91,119.87x = 4,367,952,739.37
  5. Step 5: Solve for x
    x = 4,367,952,739.37/91,119.87
  6. Step 6: Final answer
    x = 47,936.34

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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.