Home / 54,793.16-75,615.18-30,920.12

Finding the Fourth Proportional to 54,793.16, 75,615.18 and 30,920.12

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Solution

The fourth proportional to 54,793.16, 75,615.18 and 30,920.12 is: 42,670.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,793.16 : 75,615.18 = 30,920.12 : x
  2. Step 2: Convert to fraction form
    54,793.16/75,615.18 = 30,920.12/x
  3. Step 3: Cross multiply
    54,793.16x = 75,615.18 × 30,920.12
  4. Step 4: Simplify right side
    54,793.16x = 2,338,030,439.42
  5. Step 5: Solve for x
    x = 2,338,030,439.42/54,793.16
  6. Step 6: Final answer
    x = 42,670.12

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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.