Home / 87,261.45-130,771.07-39,760.45

Finding the Fourth Proportional to 87,261.45, 130,771.07 and 39,760.45

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Solution

The fourth proportional to 87,261.45, 130,771.07 and 39,760.45 is: 59,585.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,261.45 : 130,771.07 = 39,760.45 : x
  2. Step 2: Convert to fraction form
    87,261.45/130,771.07 = 39,760.45/x
  3. Step 3: Cross multiply
    87,261.45x = 130,771.07 × 39,760.45
  4. Step 4: Simplify right side
    87,261.45x = 5,199,516,590.18
  5. Step 5: Solve for x
    x = 5,199,516,590.18/87,261.45
  6. Step 6: Final answer
    x = 59,585.50

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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.