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Finding the Fourth Proportional to 69,818.40, 104,722.80 and 22,432.80

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Solution

The fourth proportional to 69,818.40, 104,722.80 and 22,432.80 is: 33,647.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,818.40 : 104,722.80 = 22,432.80 : x
  2. Step 2: Convert to fraction form
    69,818.40/104,722.80 = 22,432.80/x
  3. Step 3: Cross multiply
    69,818.40x = 104,722.80 × 22,432.80
  4. Step 4: Simplify right side
    69,818.40x = 2,349,225,627.84
  5. Step 5: Solve for x
    x = 2,349,225,627.84/69,818.40
  6. Step 6: Final answer
    x = 33,647.66

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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.