Home / 75,780.28-104,574.38-41,790.20

Finding the Fourth Proportional to 75,780.28, 104,574.38 and 41,790.20

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Solution

The fourth proportional to 75,780.28, 104,574.38 and 41,790.20 is: 57,669.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,780.28 : 104,574.38 = 41,790.20 : x
  2. Step 2: Convert to fraction form
    75,780.28/104,574.38 = 41,790.20/x
  3. Step 3: Cross multiply
    75,780.28x = 104,574.38 × 41,790.20
  4. Step 4: Simplify right side
    75,780.28x = 4,370,184,255.08
  5. Step 5: Solve for x
    x = 4,370,184,255.08/75,780.28
  6. Step 6: Final answer
    x = 57,669.15

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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.