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Finding the Fourth Proportional to 66,397.04, 91,626.71 and 36,182.61

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Solution

The fourth proportional to 66,397.04, 91,626.71 and 36,182.61 is: 49,931.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,397.04 : 91,626.71 = 36,182.61 : x
  2. Step 2: Convert to fraction form
    66,397.04/91,626.71 = 36,182.61/x
  3. Step 3: Cross multiply
    66,397.04x = 91,626.71 × 36,182.61
  4. Step 4: Simplify right side
    66,397.04x = 3,315,293,603.97
  5. Step 5: Solve for x
    x = 3,315,293,603.97/66,397.04
  6. Step 6: Final answer
    x = 49,931.35

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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.