Home / 51,718.40-71,213.44-38,990.08

Finding the Fourth Proportional to 51,718.40, 71,213.44 and 38,990.08

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Solution

The fourth proportional to 51,718.40, 71,213.44 and 38,990.08 is: 53,687.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,718.40 : 71,213.44 = 38,990.08 : x
  2. Step 2: Convert to fraction form
    51,718.40/71,213.44 = 38,990.08/x
  3. Step 3: Cross multiply
    51,718.40x = 71,213.44 × 38,990.08
  4. Step 4: Simplify right side
    51,718.40x = 2,776,617,722.68
  5. Step 5: Solve for x
    x = 2,776,617,722.68/51,718.40
  6. Step 6: Final answer
    x = 53,687.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.