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Finding the Fourth Proportional to 51,805.60, 77,650.80 and 22,218.40

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Solution

The fourth proportional to 51,805.60, 77,650.80 and 22,218.40 is: 33,302.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,805.60 : 77,650.80 = 22,218.40 : x
  2. Step 2: Convert to fraction form
    51,805.60/77,650.80 = 22,218.40/x
  3. Step 3: Cross multiply
    51,805.60x = 77,650.80 × 22,218.40
  4. Step 4: Simplify right side
    51,805.60x = 1,725,276,534.72
  5. Step 5: Solve for x
    x = 1,725,276,534.72/51,805.60
  6. Step 6: Final answer
    x = 33,302.90

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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.