Home / 91,515.04-137,233.68-31,550.08

Finding the Fourth Proportional to 91,515.04, 137,233.68 and 31,550.08

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Solution

The fourth proportional to 91,515.04, 137,233.68 and 31,550.08 is: 47,311.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,515.04 : 137,233.68 = 31,550.08 : x
  2. Step 2: Convert to fraction form
    91,515.04/137,233.68 = 31,550.08/x
  3. Step 3: Cross multiply
    91,515.04x = 137,233.68 × 31,550.08
  4. Step 4: Simplify right side
    91,515.04x = 4,329,733,582.69
  5. Step 5: Solve for x
    x = 4,329,733,582.69/91,515.04
  6. Step 6: Final answer
    x = 47,311.72

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1.5x scale

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.