Home / 55,777.77-76,972.37-30,627.09

Finding the Fourth Proportional to 55,777.77, 76,972.37 and 30,627.09

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Solution

The fourth proportional to 55,777.77, 76,972.37 and 30,627.09 is: 42,264.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,777.77 : 76,972.37 = 30,627.09 : x
  2. Step 2: Convert to fraction form
    55,777.77/76,972.37 = 30,627.09/x
  3. Step 3: Cross multiply
    55,777.77x = 76,972.37 × 30,627.09
  4. Step 4: Simplify right side
    55,777.77x = 2,357,439,550.37
  5. Step 5: Solve for x
    x = 2,357,439,550.37/55,777.77
  6. Step 6: Final answer
    x = 42,264.86

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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.