Home / 51,330.18-76,995.30-19,755.12

Finding the Fourth Proportional to 51,330.18, 76,995.30 and 19,755.12

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Solution

The fourth proportional to 51,330.18, 76,995.30 and 19,755.12 is: 29,632.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,330.18 : 76,995.30 = 19,755.12 : x
  2. Step 2: Convert to fraction form
    51,330.18/76,995.30 = 19,755.12/x
  3. Step 3: Cross multiply
    51,330.18x = 76,995.30 × 19,755.12
  4. Step 4: Simplify right side
    51,330.18x = 1,521,051,390.94
  5. Step 5: Solve for x
    x = 1,521,051,390.94/51,330.18
  6. Step 6: Final answer
    x = 29,632.69

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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.