Home / 51,207.40-76,739.10-40,695.40

Finding the Fourth Proportional to 51,207.40, 76,739.10 and 40,695.40

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Solution

The fourth proportional to 51,207.40, 76,739.10 and 40,695.40 is: 60,985.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,207.40 : 76,739.10 = 40,695.40 : x
  2. Step 2: Convert to fraction form
    51,207.40/76,739.10 = 40,695.40/x
  3. Step 3: Cross multiply
    51,207.40x = 76,739.10 × 40,695.40
  4. Step 4: Simplify right side
    51,207.40x = 3,122,928,370.14
  5. Step 5: Solve for x
    x = 3,122,928,370.14/51,207.40
  6. Step 6: Final answer
    x = 60,985.88

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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.