Home / 56,639.60-84,960.84-31,665.68

Finding the Fourth Proportional to 56,639.60, 84,960.84 and 31,665.68

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Solution

The fourth proportional to 56,639.60, 84,960.84 and 31,665.68 is: 47,499.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,639.60 : 84,960.84 = 31,665.68 : x
  2. Step 2: Convert to fraction form
    56,639.60/84,960.84 = 31,665.68/x
  3. Step 3: Cross multiply
    56,639.60x = 84,960.84 × 31,665.68
  4. Step 4: Simplify right side
    56,639.60x = 2,690,342,771.97
  5. Step 5: Solve for x
    x = 2,690,342,771.97/56,639.60
  6. Step 6: Final answer
    x = 47,499.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.