Home / 77,427.96-106,154.94-76,028.28

Finding the Fourth Proportional to 77,427.96, 106,154.94 and 76,028.28

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Solution

The fourth proportional to 77,427.96, 106,154.94 and 76,028.28 is: 104,235.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,427.96 : 106,154.94 = 76,028.28 : x
  2. Step 2: Convert to fraction form
    77,427.96/106,154.94 = 76,028.28/x
  3. Step 3: Cross multiply
    77,427.96x = 106,154.94 × 76,028.28
  4. Step 4: Simplify right side
    77,427.96x = 8,070,777,501.70
  5. Step 5: Solve for x
    x = 8,070,777,501.70/77,427.96
  6. Step 6: Final answer
    x = 104,235.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.