Home / 87,783.03-131,368.37-71,803.35

Finding the Fourth Proportional to 87,783.03, 131,368.37 and 71,803.35

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Solution

The fourth proportional to 87,783.03, 131,368.37 and 71,803.35 is: 107,454.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,783.03 : 131,368.37 = 71,803.35 : x
  2. Step 2: Convert to fraction form
    87,783.03/131,368.37 = 71,803.35/x
  3. Step 3: Cross multiply
    87,783.03x = 131,368.37 × 71,803.35
  4. Step 4: Simplify right side
    87,783.03x = 9,432,688,691.02
  5. Step 5: Solve for x
    x = 9,432,688,691.02/87,783.03
  6. Step 6: Final answer
    x = 107,454.58

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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.