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Finding the Fourth Proportional to 66,225.76, 91,391.04 and 36,011.10

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Solution

The fourth proportional to 66,225.76, 91,391.04 and 36,011.10 is: 49,695.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,225.76 : 91,391.04 = 36,011.10 : x
  2. Step 2: Convert to fraction form
    66,225.76/91,391.04 = 36,011.10/x
  3. Step 3: Cross multiply
    66,225.76x = 91,391.04 × 36,011.10
  4. Step 4: Simplify right side
    66,225.76x = 3,291,091,880.54
  5. Step 5: Solve for x
    x = 3,291,091,880.54/66,225.76
  6. Step 6: Final answer
    x = 49,695.04

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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.