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Finding the Fourth Proportional to 66,789.34, 100,220.90 and 37,223.84

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Solution

The fourth proportional to 66,789.34, 100,220.90 and 37,223.84 is: 55,856.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,789.34 : 100,220.90 = 37,223.84 : x
  2. Step 2: Convert to fraction form
    66,789.34/100,220.90 = 37,223.84/x
  3. Step 3: Cross multiply
    66,789.34x = 100,220.90 × 37,223.84
  4. Step 4: Simplify right side
    66,789.34x = 3,730,606,746.26
  5. Step 5: Solve for x
    x = 3,730,606,746.26/66,789.34
  6. Step 6: Final answer
    x = 55,856.32

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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.