Home / 56,919.97-85,440.08-31,981.33

Finding the Fourth Proportional to 56,919.97, 85,440.08 and 31,981.33

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Solution

The fourth proportional to 56,919.97, 85,440.08 and 31,981.33 is: 48,005.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,919.97 : 85,440.08 = 31,981.33 : x
  2. Step 2: Convert to fraction form
    56,919.97/85,440.08 = 31,981.33/x
  3. Step 3: Cross multiply
    56,919.97x = 85,440.08 × 31,981.33
  4. Step 4: Simplify right side
    56,919.97x = 2,732,487,393.71
  5. Step 5: Solve for x
    x = 2,732,487,393.71/56,919.97
  6. Step 6: Final answer
    x = 48,005.78

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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.