Home / 56,089.22-77,399.61-30,938.66

Finding the Fourth Proportional to 56,089.22, 77,399.61 and 30,938.66

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Solution

The fourth proportional to 56,089.22, 77,399.61 and 30,938.66 is: 42,693.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,089.22 : 77,399.61 = 30,938.66 : x
  2. Step 2: Convert to fraction form
    56,089.22/77,399.61 = 30,938.66/x
  3. Step 3: Cross multiply
    56,089.22x = 77,399.61 × 30,938.66
  4. Step 4: Simplify right side
    56,089.22x = 2,394,640,217.92
  5. Step 5: Solve for x
    x = 2,394,640,217.92/56,089.22
  6. Step 6: Final answer
    x = 42,693.41

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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.