Home / 51,400.60-77,043.30-21,813.40

Finding the Fourth Proportional to 51,400.60, 77,043.30 and 21,813.40

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Solution

The fourth proportional to 51,400.60, 77,043.30 and 21,813.40 is: 32,695.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,400.60 : 77,043.30 = 21,813.40 : x
  2. Step 2: Convert to fraction form
    51,400.60/77,043.30 = 21,813.40/x
  3. Step 3: Cross multiply
    51,400.60x = 77,043.30 × 21,813.40
  4. Step 4: Simplify right side
    51,400.60x = 1,680,576,320.22
  5. Step 5: Solve for x
    x = 1,680,576,320.22/51,400.60
  6. Step 6: Final answer
    x = 32,695.66

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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.