Home / 91,317.65-137,012.79-35,142.68

Finding the Fourth Proportional to 91,317.65, 137,012.79 and 35,142.68

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Solution

The fourth proportional to 91,317.65, 137,012.79 and 35,142.68 is: 52,727.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,317.65 : 137,012.79 = 35,142.68 : x
  2. Step 2: Convert to fraction form
    91,317.65/137,012.79 = 35,142.68/x
  3. Step 3: Cross multiply
    91,317.65x = 137,012.79 × 35,142.68
  4. Step 4: Simplify right side
    91,317.65x = 4,814,995,949.81
  5. Step 5: Solve for x
    x = 4,814,995,949.81/91,317.65
  6. Step 6: Final answer
    x = 52,727.99

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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.