Home / 77,113.87-106,416.41-43,121.97

Finding the Fourth Proportional to 77,113.87, 106,416.41 and 43,121.97

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Solution

The fourth proportional to 77,113.87, 106,416.41 and 43,121.97 is: 59,507.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,113.87 : 106,416.41 = 43,121.97 : x
  2. Step 2: Convert to fraction form
    77,113.87/106,416.41 = 43,121.97/x
  3. Step 3: Cross multiply
    77,113.87x = 106,416.41 × 43,121.97
  4. Step 4: Simplify right side
    77,113.87x = 4,588,885,266.48
  5. Step 5: Solve for x
    x = 4,588,885,266.48/77,113.87
  6. Step 6: Final answer
    x = 59,507.91

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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.