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Finding the Fourth Proportional to 66,977.12, 92,428.04 and 36,761.68

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Solution

The fourth proportional to 66,977.12, 92,428.04 and 36,761.68 is: 50,730.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,977.12 : 92,428.04 = 36,761.68 : x
  2. Step 2: Convert to fraction form
    66,977.12/92,428.04 = 36,761.68/x
  3. Step 3: Cross multiply
    66,977.12x = 92,428.04 × 36,761.68
  4. Step 4: Simplify right side
    66,977.12x = 3,397,810,029.51
  5. Step 5: Solve for x
    x = 3,397,810,029.51/66,977.12
  6. Step 6: Final answer
    x = 50,730.91

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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.