Home / 55,876.37-77,109.38-30,725.87

Finding the Fourth Proportional to 55,876.37, 77,109.38 and 30,725.87

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Solution

The fourth proportional to 55,876.37, 77,109.38 and 30,725.87 is: 42,401.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,876.37 : 77,109.38 = 30,725.87 : x
  2. Step 2: Convert to fraction form
    55,876.37/77,109.38 = 30,725.87/x
  3. Step 3: Cross multiply
    55,876.37x = 77,109.38 × 30,725.87
  4. Step 4: Simplify right side
    55,876.37x = 2,369,252,361.71
  5. Step 5: Solve for x
    x = 2,369,252,361.71/55,876.37
  6. Step 6: Final answer
    x = 42,401.69

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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.