Home / 50,311.32-75,479.13-18,722.40

Finding the Fourth Proportional to 50,311.32, 75,479.13 and 18,722.40

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Solution

The fourth proportional to 50,311.32, 75,479.13 and 18,722.40 is: 28,088.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,311.32 : 75,479.13 = 18,722.40 : x
  2. Step 2: Convert to fraction form
    50,311.32/75,479.13 = 18,722.40/x
  3. Step 3: Cross multiply
    50,311.32x = 75,479.13 × 18,722.40
  4. Step 4: Simplify right side
    50,311.32x = 1,413,150,463.51
  5. Step 5: Solve for x
    x = 1,413,150,463.51/50,311.32
  6. Step 6: Final answer
    x = 28,088.12

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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.