Home / 55,790.12-76,991.94-30,641.24

Finding the Fourth Proportional to 55,790.12, 76,991.94 and 30,641.24

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Solution

The fourth proportional to 55,790.12, 76,991.94 and 30,641.24 is: 42,285.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,790.12 : 76,991.94 = 30,641.24 : x
  2. Step 2: Convert to fraction form
    55,790.12/76,991.94 = 30,641.24/x
  3. Step 3: Cross multiply
    55,790.12x = 76,991.94 × 30,641.24
  4. Step 4: Simplify right side
    55,790.12x = 2,359,128,511.61
  5. Step 5: Solve for x
    x = 2,359,128,511.61/55,790.12
  6. Step 6: Final answer
    x = 42,285.78

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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.