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Finding the Fourth Proportional to 92,941.47, 128,260.40 and 50,500.71

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Solution

The fourth proportional to 92,941.47, 128,260.40 and 50,500.71 is: 69,691.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,941.47 : 128,260.40 = 50,500.71 : x
  2. Step 2: Convert to fraction form
    92,941.47/128,260.40 = 50,500.71/x
  3. Step 3: Cross multiply
    92,941.47x = 128,260.40 × 50,500.71
  4. Step 4: Simplify right side
    92,941.47x = 6,477,241,012.38
  5. Step 5: Solve for x
    x = 6,477,241,012.38/92,941.47
  6. Step 6: Final answer
    x = 69,691.61

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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.