Home / 50,106.40-69,158.20-31,239.88

Finding the Fourth Proportional to 50,106.40, 69,158.20 and 31,239.88

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Solution

The fourth proportional to 50,106.40, 69,158.20 and 31,239.88 is: 43,118.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,106.40 : 69,158.20 = 31,239.88 : x
  2. Step 2: Convert to fraction form
    50,106.40/69,158.20 = 31,239.88/x
  3. Step 3: Cross multiply
    50,106.40x = 69,158.20 × 31,239.88
  4. Step 4: Simplify right side
    50,106.40x = 2,160,493,869.02
  5. Step 5: Solve for x
    x = 2,160,493,869.02/50,106.40
  6. Step 6: Final answer
    x = 43,118.12

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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.