Home / 84,000.02-126,002.46-31,399.43

Finding the Fourth Proportional to 84,000.02, 126,002.46 and 31,399.43

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Solution

The fourth proportional to 84,000.02, 126,002.46 and 31,399.43 is: 47,100.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,000.02 : 126,002.46 = 31,399.43 : x
  2. Step 2: Convert to fraction form
    84,000.02/126,002.46 = 31,399.43/x
  3. Step 3: Cross multiply
    84,000.02x = 126,002.46 × 31,399.43
  4. Step 4: Simplify right side
    84,000.02x = 3,956,405,422.60
  5. Step 5: Solve for x
    x = 3,956,405,422.60/84,000.02
  6. Step 6: Final answer
    x = 47,100.05

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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.