Home / 55,035.75-75,944.07-31,157.76

Finding the Fourth Proportional to 55,035.75, 75,944.07 and 31,157.76

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Solution

The fourth proportional to 55,035.75, 75,944.07 and 31,157.76 is: 42,994.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,035.75 : 75,944.07 = 31,157.76 : x
  2. Step 2: Convert to fraction form
    55,035.75/75,944.07 = 31,157.76/x
  3. Step 3: Cross multiply
    55,035.75x = 75,944.07 × 31,157.76
  4. Step 4: Simplify right side
    55,035.75x = 2,366,247,106.48
  5. Step 5: Solve for x
    x = 2,366,247,106.48/55,035.75
  6. Step 6: Final answer
    x = 42,994.73

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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.