Home / 87,231.40-130,847.10-45,111.40

Finding the Fourth Proportional to 87,231.40, 130,847.10 and 45,111.40

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Solution

The fourth proportional to 87,231.40, 130,847.10 and 45,111.40 is: 67,667.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,231.40 : 130,847.10 = 45,111.40 : x
  2. Step 2: Convert to fraction form
    87,231.40/130,847.10 = 45,111.40/x
  3. Step 3: Cross multiply
    87,231.40x = 130,847.10 × 45,111.40
  4. Step 4: Simplify right side
    87,231.40x = 5,902,695,866.94
  5. Step 5: Solve for x
    x = 5,902,695,866.94/87,231.40
  6. Step 6: Final answer
    x = 67,667.10

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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.