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Finding the Fourth Proportional to 66,164.60, 99,246.90 and 41,123.45

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Solution

The fourth proportional to 66,164.60, 99,246.90 and 41,123.45 is: 61,685.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,164.60 : 99,246.90 = 41,123.45 : x
  2. Step 2: Convert to fraction form
    66,164.60/99,246.90 = 41,123.45/x
  3. Step 3: Cross multiply
    66,164.60x = 99,246.90 × 41,123.45
  4. Step 4: Simplify right side
    66,164.60x = 4,081,374,929.81
  5. Step 5: Solve for x
    x = 4,081,374,929.81/66,164.60
  6. Step 6: Final answer
    x = 61,685.18

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Similar ratio
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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.