Home / 77,132.53-106,435.54-43,140.17

Finding the Fourth Proportional to 77,132.53, 106,435.54 and 43,140.17

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Solution

The fourth proportional to 77,132.53, 106,435.54 and 43,140.17 is: 59,529.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,132.53 : 106,435.54 = 43,140.17 : x
  2. Step 2: Convert to fraction form
    77,132.53/106,435.54 = 43,140.17/x
  3. Step 3: Cross multiply
    77,132.53x = 106,435.54 × 43,140.17
  4. Step 4: Simplify right side
    77,132.53x = 4,591,647,158.64
  5. Step 5: Solve for x
    x = 4,591,647,158.64/77,132.53
  6. Step 6: Final answer
    x = 59,529.32

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1.5x scale

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.