Home / 55,825.68-77,038.20-30,331.38

Finding the Fourth Proportional to 55,825.68, 77,038.20 and 30,331.38

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Solution

The fourth proportional to 55,825.68, 77,038.20 and 30,331.38 is: 41,856.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,825.68 : 77,038.20 = 30,331.38 : x
  2. Step 2: Convert to fraction form
    55,825.68/77,038.20 = 30,331.38/x
  3. Step 3: Cross multiply
    55,825.68x = 77,038.20 × 30,331.38
  4. Step 4: Simplify right side
    55,825.68x = 2,336,674,918.72
  5. Step 5: Solve for x
    x = 2,336,674,918.72/55,825.68
  6. Step 6: Final answer
    x = 41,856.63

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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.