Home / 55,742.28-76,923.59-30,591.78

Finding the Fourth Proportional to 55,742.28, 76,923.59 and 30,591.78

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Solution

The fourth proportional to 55,742.28, 76,923.59 and 30,591.78 is: 42,216.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,742.28 : 76,923.59 = 30,591.78 : x
  2. Step 2: Convert to fraction form
    55,742.28/76,923.59 = 30,591.78/x
  3. Step 3: Cross multiply
    55,742.28x = 76,923.59 × 30,591.78
  4. Step 4: Simplify right side
    55,742.28x = 2,353,229,389.13
  5. Step 5: Solve for x
    x = 2,353,229,389.13/55,742.28
  6. Step 6: Final answer
    x = 42,216.24

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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.