Home / 77,391.82-106,822.86-45,579.16

Finding the Fourth Proportional to 77,391.82, 106,822.86 and 45,579.16

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Solution

The fourth proportional to 77,391.82, 106,822.86 and 45,579.16 is: 62,912.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,391.82 : 106,822.86 = 45,579.16 : x
  2. Step 2: Convert to fraction form
    77,391.82/106,822.86 = 45,579.16/x
  3. Step 3: Cross multiply
    77,391.82x = 106,822.86 × 45,579.16
  4. Step 4: Simplify right side
    77,391.82x = 4,868,896,227.60
  5. Step 5: Solve for x
    x = 4,868,896,227.60/77,391.82
  6. Step 6: Final answer
    x = 62,912.28

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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.