Home / 51,079.40-76,676.70-39,444.20

Finding the Fourth Proportional to 51,079.40, 76,676.70 and 39,444.20

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Solution

The fourth proportional to 51,079.40, 76,676.70 and 39,444.20 is: 59,210.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,079.40 : 76,676.70 = 39,444.20 : x
  2. Step 2: Convert to fraction form
    51,079.40/76,676.70 = 39,444.20/x
  3. Step 3: Cross multiply
    51,079.40x = 76,676.70 × 39,444.20
  4. Step 4: Simplify right side
    51,079.40x = 3,024,451,090.14
  5. Step 5: Solve for x
    x = 3,024,451,090.14/51,079.40
  6. Step 6: Final answer
    x = 59,210.78

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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.