Home / 55,874.18-77,107.53-30,723.62

Finding the Fourth Proportional to 55,874.18, 77,107.53 and 30,723.62

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Solution

The fourth proportional to 55,874.18, 77,107.53 and 30,723.62 is: 42,399.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,874.18 : 77,107.53 = 30,723.62 : x
  2. Step 2: Convert to fraction form
    55,874.18/77,107.53 = 30,723.62/x
  3. Step 3: Cross multiply
    55,874.18x = 77,107.53 × 30,723.62
  4. Step 4: Simplify right side
    55,874.18x = 2,369,022,450.86
  5. Step 5: Solve for x
    x = 2,369,022,450.86/55,874.18
  6. Step 6: Final answer
    x = 42,399.23

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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.