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Finding the Fourth Proportional to 66,252.60, 91,429.78 and 36,038.60

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Solution

The fourth proportional to 66,252.60, 91,429.78 and 36,038.60 is: 49,733.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,252.60 : 91,429.78 = 36,038.60 : x
  2. Step 2: Convert to fraction form
    66,252.60/91,429.78 = 36,038.60/x
  3. Step 3: Cross multiply
    66,252.60x = 91,429.78 × 36,038.60
  4. Step 4: Simplify right side
    66,252.60x = 3,295,001,269.51
  5. Step 5: Solve for x
    x = 3,295,001,269.51/66,252.60
  6. Step 6: Final answer
    x = 49,733.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.