Home / 87,284.63-130,984.35-47,869.42

Finding the Fourth Proportional to 87,284.63, 130,984.35 and 47,869.42

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Solution

The fourth proportional to 87,284.63, 130,984.35 and 47,869.42 is: 71,835.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,284.63 : 130,984.35 = 47,869.42 : x
  2. Step 2: Convert to fraction form
    87,284.63/130,984.35 = 47,869.42/x
  3. Step 3: Cross multiply
    87,284.63x = 130,984.35 × 47,869.42
  4. Step 4: Simplify right side
    87,284.63x = 6,270,144,863.58
  5. Step 5: Solve for x
    x = 6,270,144,863.58/87,284.63
  6. Step 6: Final answer
    x = 71,835.61

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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.