Home / 69,380.55-104,040.05-31,931.55

Finding the Fourth Proportional to 69,380.55, 104,040.05 and 31,931.55

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Solution

The fourth proportional to 69,380.55, 104,040.05 and 31,931.55 is: 47,883.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,380.55 : 104,040.05 = 31,931.55 : x
  2. Step 2: Convert to fraction form
    69,380.55/104,040.05 = 31,931.55/x
  3. Step 3: Cross multiply
    69,380.55x = 104,040.05 × 31,931.55
  4. Step 4: Simplify right side
    69,380.55x = 3,322,159,898.92
  5. Step 5: Solve for x
    x = 3,322,159,898.92/69,380.55
  6. Step 6: Final answer
    x = 47,883.16

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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.