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Finding the Fourth Proportional to 66,200.60, 99,300.90 and 49,360.70

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Solution

The fourth proportional to 66,200.60, 99,300.90 and 49,360.70 is: 74,041.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,200.60 : 99,300.90 = 49,360.70 : x
  2. Step 2: Convert to fraction form
    66,200.60/99,300.90 = 49,360.70/x
  3. Step 3: Cross multiply
    66,200.60x = 99,300.90 × 49,360.70
  4. Step 4: Simplify right side
    66,200.60x = 4,901,561,934.63
  5. Step 5: Solve for x
    x = 4,901,561,934.63/66,200.60
  6. Step 6: Final answer
    x = 74,041.05

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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.