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Finding the Fourth Proportional to 66,860.74, 92,265.84 and 36,645.40

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Solution

The fourth proportional to 66,860.74, 92,265.84 and 36,645.40 is: 50,569.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,860.74 : 92,265.84 = 36,645.40 : x
  2. Step 2: Convert to fraction form
    66,860.74/92,265.84 = 36,645.40/x
  3. Step 3: Cross multiply
    66,860.74x = 92,265.84 × 36,645.40
  4. Step 4: Simplify right side
    66,860.74x = 3,381,118,613.14
  5. Step 5: Solve for x
    x = 3,381,118,613.14/66,860.74
  6. Step 6: Final answer
    x = 50,569.57

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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.