Home / 51,455.58-77,220.30-21,894.18

Finding the Fourth Proportional to 51,455.58, 77,220.30 and 21,894.18

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Solution

The fourth proportional to 51,455.58, 77,220.30 and 21,894.18 is: 32,856.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,455.58 : 77,220.30 = 21,894.18 : x
  2. Step 2: Convert to fraction form
    51,455.58/77,220.30 = 21,894.18/x
  3. Step 3: Cross multiply
    51,455.58x = 77,220.30 × 21,894.18
  4. Step 4: Simplify right side
    51,455.58x = 1,690,675,147.85
  5. Step 5: Solve for x
    x = 1,690,675,147.85/51,455.58
  6. Step 6: Final answer
    x = 32,856.98

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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.