Home / 55,350.88-76,386-30,201.76

Finding the Fourth Proportional to 55,350.88, 76,386 and 30,201.76

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Solution

The fourth proportional to 55,350.88, 76,386 and 30,201.76 is: 41,679.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,350.88 : 76,386 = 30,201.76 : x
  2. Step 2: Convert to fraction form
    55,350.88/76,386 = 30,201.76/x
  3. Step 3: Cross multiply
    55,350.88x = 76,386 × 30,201.76
  4. Step 4: Simplify right side
    55,350.88x = 2,306,991,639.36
  5. Step 5: Solve for x
    x = 2,306,991,639.36/55,350.88
  6. Step 6: Final answer
    x = 41,679.40

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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.