Home / 77,372.21-106,078.29-75,972.53

Finding the Fourth Proportional to 77,372.21, 106,078.29 and 75,972.53

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Solution

The fourth proportional to 77,372.21, 106,078.29 and 75,972.53 is: 104,159.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,372.21 : 106,078.29 = 75,972.53 : x
  2. Step 2: Convert to fraction form
    77,372.21/106,078.29 = 75,972.53/x
  3. Step 3: Cross multiply
    77,372.21x = 106,078.29 × 75,972.53
  4. Step 4: Simplify right side
    77,372.21x = 8,059,036,069.37
  5. Step 5: Solve for x
    x = 8,059,036,069.37/77,372.21
  6. Step 6: Final answer
    x = 104,159.31

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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.