Home / 87,000.67-130,551.18-47,019.75

Finding the Fourth Proportional to 87,000.67, 130,551.18 and 47,019.75

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Solution

The fourth proportional to 87,000.67, 130,551.18 and 47,019.75 is: 70,556.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,000.67 : 130,551.18 = 47,019.75 : x
  2. Step 2: Convert to fraction form
    87,000.67/130,551.18 = 47,019.75/x
  3. Step 3: Cross multiply
    87,000.67x = 130,551.18 × 47,019.75
  4. Step 4: Simplify right side
    87,000.67x = 6,138,483,845.81
  5. Step 5: Solve for x
    x = 6,138,483,845.81/87,000.67
  6. Step 6: Final answer
    x = 70,556.74

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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.