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Finding the Fourth Proportional to 65,230.31, 90,017.83 and 36,941.47

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Solution

The fourth proportional to 65,230.31, 90,017.83 and 36,941.47 is: 50,979.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,230.31 : 90,017.83 = 36,941.47 : x
  2. Step 2: Convert to fraction form
    65,230.31/90,017.83 = 36,941.47/x
  3. Step 3: Cross multiply
    65,230.31x = 90,017.83 × 36,941.47
  4. Step 4: Simplify right side
    65,230.31x = 3,325,390,787.54
  5. Step 5: Solve for x
    x = 3,325,390,787.54/65,230.31
  6. Step 6: Final answer
    x = 50,979.23

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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.