Home / 77,099.80-106,403.02-43,107.59

Finding the Fourth Proportional to 77,099.80, 106,403.02 and 43,107.59

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Solution

The fourth proportional to 77,099.80, 106,403.02 and 43,107.59 is: 59,491.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,099.80 : 106,403.02 = 43,107.59 : x
  2. Step 2: Convert to fraction form
    77,099.80/106,403.02 = 43,107.59/x
  3. Step 3: Cross multiply
    77,099.80x = 106,403.02 × 43,107.59
  4. Step 4: Simplify right side
    77,099.80x = 4,586,777,919.16
  5. Step 5: Solve for x
    x = 4,586,777,919.16/77,099.80
  6. Step 6: Final answer
    x = 59,491.44

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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.