Home / 55,777.64-76,954.30-31,887.40

Finding the Fourth Proportional to 55,777.64, 76,954.30 and 31,887.40

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Solution

The fourth proportional to 55,777.64, 76,954.30 and 31,887.40 is: 43,993.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,777.64 : 76,954.30 = 31,887.40 : x
  2. Step 2: Convert to fraction form
    55,777.64/76,954.30 = 31,887.40/x
  3. Step 3: Cross multiply
    55,777.64x = 76,954.30 × 31,887.40
  4. Step 4: Simplify right side
    55,777.64x = 2,453,872,545.82
  5. Step 5: Solve for x
    x = 2,453,872,545.82/55,777.64
  6. Step 6: Final answer
    x = 43,993.84

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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.