Home / 55,731.74-76,909.59-30,581.66

Finding the Fourth Proportional to 55,731.74, 76,909.59 and 30,581.66

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Solution

The fourth proportional to 55,731.74, 76,909.59 and 30,581.66 is: 42,202.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,731.74 : 76,909.59 = 30,581.66 : x
  2. Step 2: Convert to fraction form
    55,731.74/76,909.59 = 30,581.66/x
  3. Step 3: Cross multiply
    55,731.74x = 76,909.59 × 30,581.66
  4. Step 4: Simplify right side
    55,731.74x = 2,352,022,932.12
  5. Step 5: Solve for x
    x = 2,352,022,932.12/55,731.74
  6. Step 6: Final answer
    x = 42,202.57

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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.