Home / 55,065.30-75,989.99-31,191.92

Finding the Fourth Proportional to 55,065.30, 75,989.99 and 31,191.92

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Solution

The fourth proportional to 55,065.30, 75,989.99 and 31,191.92 is: 43,044.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,065.30 : 75,989.99 = 31,191.92 : x
  2. Step 2: Convert to fraction form
    55,065.30/75,989.99 = 31,191.92/x
  3. Step 3: Cross multiply
    55,065.30x = 75,989.99 × 31,191.92
  4. Step 4: Simplify right side
    55,065.30x = 2,370,273,152.97
  5. Step 5: Solve for x
    x = 2,370,273,152.97/55,065.30
  6. Step 6: Final answer
    x = 43,044.77

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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.