Home / 55,140.56-76,093.82-30,615.12

Finding the Fourth Proportional to 55,140.56, 76,093.82 and 30,615.12

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Solution

The fourth proportional to 55,140.56, 76,093.82 and 30,615.12 is: 42,248.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,140.56 : 76,093.82 = 30,615.12 : x
  2. Step 2: Convert to fraction form
    55,140.56/76,093.82 = 30,615.12/x
  3. Step 3: Cross multiply
    55,140.56x = 76,093.82 × 30,615.12
  4. Step 4: Simplify right side
    55,140.56x = 2,329,621,430.56
  5. Step 5: Solve for x
    x = 2,329,621,430.56/55,140.56
  6. Step 6: Final answer
    x = 42,248.78

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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.