Home / 78,250.68-108,008.10-64,137.24

Finding the Fourth Proportional to 78,250.68, 108,008.10 and 64,137.24

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Solution

The fourth proportional to 78,250.68, 108,008.10 and 64,137.24 is: 88,527.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,250.68 : 108,008.10 = 64,137.24 : x
  2. Step 2: Convert to fraction form
    78,250.68/108,008.10 = 64,137.24/x
  3. Step 3: Cross multiply
    78,250.68x = 108,008.10 × 64,137.24
  4. Step 4: Simplify right side
    78,250.68x = 6,927,341,431.64
  5. Step 5: Solve for x
    x = 6,927,341,431.64/78,250.68
  6. Step 6: Final answer
    x = 88,527.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.