Home / 55,922.22-77,170.34-30,428.68

Finding the Fourth Proportional to 55,922.22, 77,170.34 and 30,428.68

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Solution

The fourth proportional to 55,922.22, 77,170.34 and 30,428.68 is: 41,990.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,922.22 : 77,170.34 = 30,428.68 : x
  2. Step 2: Convert to fraction form
    55,922.22/77,170.34 = 30,428.68/x
  3. Step 3: Cross multiply
    55,922.22x = 77,170.34 × 30,428.68
  4. Step 4: Simplify right side
    55,922.22x = 2,348,191,581.35
  5. Step 5: Solve for x
    x = 2,348,191,581.35/55,922.22
  6. Step 6: Final answer
    x = 41,990.31

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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.