Home / 54,872.22-75,727.47-30,990.18

Finding the Fourth Proportional to 54,872.22, 75,727.47 and 30,990.18

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Solution

The fourth proportional to 54,872.22, 75,727.47 and 30,990.18 is: 42,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,872.22 : 75,727.47 = 30,990.18 : x
  2. Step 2: Convert to fraction form
    54,872.22/75,727.47 = 30,990.18/x
  3. Step 3: Cross multiply
    54,872.22x = 75,727.47 × 30,990.18
  4. Step 4: Simplify right side
    54,872.22x = 2,346,807,926.24
  5. Step 5: Solve for x
    x = 2,346,807,926.24/54,872.22
  6. Step 6: Final answer
    x = 42,768.60

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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.