Home / 87,197.52-130,853.70-47,782.30

Finding the Fourth Proportional to 87,197.52, 130,853.70 and 47,782.30

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Solution

The fourth proportional to 87,197.52, 130,853.70 and 47,782.30 is: 71,704.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,197.52 : 130,853.70 = 47,782.30 : x
  2. Step 2: Convert to fraction form
    87,197.52/130,853.70 = 47,782.30/x
  3. Step 3: Cross multiply
    87,197.52x = 130,853.70 × 47,782.30
  4. Step 4: Simplify right side
    87,197.52x = 6,252,490,749.51
  5. Step 5: Solve for x
    x = 6,252,490,749.51/87,197.52
  6. Step 6: Final answer
    x = 71,704.91

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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.