Home / 87,267.67-130,913.25-28,089.07

Finding the Fourth Proportional to 87,267.67, 130,913.25 and 28,089.07

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Solution

The fourth proportional to 87,267.67, 130,913.25 and 28,089.07 is: 42,137.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,267.67 : 130,913.25 = 28,089.07 : x
  2. Step 2: Convert to fraction form
    87,267.67/130,913.25 = 28,089.07/x
  3. Step 3: Cross multiply
    87,267.67x = 130,913.25 × 28,089.07
  4. Step 4: Simplify right side
    87,267.67x = 3,677,231,443.18
  5. Step 5: Solve for x
    x = 3,677,231,443.18/87,267.67
  6. Step 6: Final answer
    x = 42,137.39

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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.