Home / 80,145.18-120,225.93-27,547.86

Finding the Fourth Proportional to 80,145.18, 120,225.93 and 27,547.86

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Solution

The fourth proportional to 80,145.18, 120,225.93 and 27,547.86 is: 41,324.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,145.18 : 120,225.93 = 27,547.86 : x
  2. Step 2: Convert to fraction form
    80,145.18/120,225.93 = 27,547.86/x
  3. Step 3: Cross multiply
    80,145.18x = 120,225.93 × 27,547.86
  4. Step 4: Simplify right side
    80,145.18x = 3,311,967,088.01
  5. Step 5: Solve for x
    x = 3,311,967,088.01/80,145.18
  6. Step 6: Final answer
    x = 41,324.59

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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.