Home / 77,026.64-115,331.24-40,012.88

Finding the Fourth Proportional to 77,026.64, 115,331.24 and 40,012.88

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Solution

The fourth proportional to 77,026.64, 115,331.24 and 40,012.88 is: 59,910.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,026.64 : 115,331.24 = 40,012.88 : x
  2. Step 2: Convert to fraction form
    77,026.64/115,331.24 = 40,012.88/x
  3. Step 3: Cross multiply
    77,026.64x = 115,331.24 × 40,012.88
  4. Step 4: Simplify right side
    77,026.64x = 4,614,735,066.37
  5. Step 5: Solve for x
    x = 4,614,735,066.37/77,026.64
  6. Step 6: Final answer
    x = 59,910.90

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1.5x scale

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.