Home / 77,120.39-106,431.57-43,132.04

Finding the Fourth Proportional to 77,120.39, 106,431.57 and 43,132.04

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Solution

The fourth proportional to 77,120.39, 106,431.57 and 43,132.04 is: 59,525.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,120.39 : 106,431.57 = 43,132.04 : x
  2. Step 2: Convert to fraction form
    77,120.39/106,431.57 = 43,132.04/x
  3. Step 3: Cross multiply
    77,120.39x = 106,431.57 × 43,132.04
  4. Step 4: Simplify right side
    77,120.39x = 4,590,611,119.27
  5. Step 5: Solve for x
    x = 4,590,611,119.27/77,120.39
  6. Step 6: Final answer
    x = 59,525.25

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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.