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Finding the Fourth Proportional to 66,341.57, 91,550.72 and 36,126.81

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Solution

The fourth proportional to 66,341.57, 91,550.72 and 36,126.81 is: 49,854.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,341.57 : 91,550.72 = 36,126.81 : x
  2. Step 2: Convert to fraction form
    66,341.57/91,550.72 = 36,126.81/x
  3. Step 3: Cross multiply
    66,341.57x = 91,550.72 × 36,126.81
  4. Step 4: Simplify right side
    66,341.57x = 3,307,435,557.12
  5. Step 5: Solve for x
    x = 3,307,435,557.12/66,341.57
  6. Step 6: Final answer
    x = 49,854.65

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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.