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Finding the Fourth Proportional to 52,670.87, 72,684.41 and 31,161.73

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Solution

The fourth proportional to 52,670.87, 72,684.41 and 31,161.73 is: 43,002.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,670.87 : 72,684.41 = 31,161.73 : x
  2. Step 2: Convert to fraction form
    52,670.87/72,684.41 = 31,161.73/x
  3. Step 3: Cross multiply
    52,670.87x = 72,684.41 × 31,161.73
  4. Step 4: Simplify right side
    52,670.87x = 2,264,971,440.40
  5. Step 5: Solve for x
    x = 2,264,971,440.40/52,670.87
  6. Step 6: Final answer
    x = 43,002.35

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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.