Home / 87,362.76-131,031.34-42,977.64

Finding the Fourth Proportional to 87,362.76, 131,031.34 and 42,977.64

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Solution

The fourth proportional to 87,362.76, 131,031.34 and 42,977.64 is: 64,460.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,362.76 : 131,031.34 = 42,977.64 : x
  2. Step 2: Convert to fraction form
    87,362.76/131,031.34 = 42,977.64/x
  3. Step 3: Cross multiply
    87,362.76x = 131,031.34 × 42,977.64
  4. Step 4: Simplify right side
    87,362.76x = 5,631,417,759.24
  5. Step 5: Solve for x
    x = 5,631,417,759.24/87,362.76
  6. Step 6: Final answer
    x = 64,460.16

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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.