Home / 91,727.04-137,718-47,386.56

Finding the Fourth Proportional to 91,727.04, 137,718 and 47,386.56

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Solution

The fourth proportional to 91,727.04, 137,718 and 47,386.56 is: 71,145.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,727.04 : 137,718 = 47,386.56 : x
  2. Step 2: Convert to fraction form
    91,727.04/137,718 = 47,386.56/x
  3. Step 3: Cross multiply
    91,727.04x = 137,718 × 47,386.56
  4. Step 4: Simplify right side
    91,727.04x = 6,525,982,270.08
  5. Step 5: Solve for x
    x = 6,525,982,270.08/91,727.04
  6. Step 6: Final answer
    x = 71,145.68

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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.