Home / 50,574.96-75,864.18-18,981.78

Finding the Fourth Proportional to 50,574.96, 75,864.18 and 18,981.78

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Solution

The fourth proportional to 50,574.96, 75,864.18 and 18,981.78 is: 28,473.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,574.96 : 75,864.18 = 18,981.78 : x
  2. Step 2: Convert to fraction form
    50,574.96/75,864.18 = 18,981.78/x
  3. Step 3: Cross multiply
    50,574.96x = 75,864.18 × 18,981.78
  4. Step 4: Simplify right side
    50,574.96x = 1,440,037,174.64
  5. Step 5: Solve for x
    x = 1,440,037,174.64/50,574.96
  6. Step 6: Final answer
    x = 28,473.32

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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.