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Finding the Fourth Proportional to 66,977.60, 92,428.82 and 36,763.40

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Solution

The fourth proportional to 66,977.60, 92,428.82 and 36,763.40 is: 50,733.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,977.60 : 92,428.82 = 36,763.40 : x
  2. Step 2: Convert to fraction form
    66,977.60/92,428.82 = 36,763.40/x
  3. Step 3: Cross multiply
    66,977.60x = 92,428.82 × 36,763.40
  4. Step 4: Simplify right side
    66,977.60x = 3,397,997,035.23
  5. Step 5: Solve for x
    x = 3,397,997,035.23/66,977.60
  6. Step 6: Final answer
    x = 50,733.34

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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.