Home / 80,547.89-120,822.30-27,240.23

Finding the Fourth Proportional to 80,547.89, 120,822.30 and 27,240.23

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Solution

The fourth proportional to 80,547.89, 120,822.30 and 27,240.23 is: 40,860.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,547.89 : 120,822.30 = 27,240.23 : x
  2. Step 2: Convert to fraction form
    80,547.89/120,822.30 = 27,240.23/x
  3. Step 3: Cross multiply
    80,547.89x = 120,822.30 × 27,240.23
  4. Step 4: Simplify right side
    80,547.89x = 3,291,227,543.18
  5. Step 5: Solve for x
    x = 3,291,227,543.18/80,547.89
  6. Step 6: Final answer
    x = 40,860.51

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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.