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Finding the Fourth Proportional to 66,095, 91,210.38 and 35,881.40

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Solution

The fourth proportional to 66,095, 91,210.38 and 35,881.40 is: 49,515.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,095 : 91,210.38 = 35,881.40 : x
  2. Step 2: Convert to fraction form
    66,095/91,210.38 = 35,881.40/x
  3. Step 3: Cross multiply
    66,095x = 91,210.38 × 35,881.40
  4. Step 4: Simplify right side
    66,095x = 3,272,756,128.93
  5. Step 5: Solve for x
    x = 3,272,756,128.93/66,095
  6. Step 6: Final answer
    x = 49,515.94

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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.