Home / 77,944.84-107,563.21-42,134.54

Finding the Fourth Proportional to 77,944.84, 107,563.21 and 42,134.54

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Solution

The fourth proportional to 77,944.84, 107,563.21 and 42,134.54 is: 58,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,944.84 : 107,563.21 = 42,134.54 : x
  2. Step 2: Convert to fraction form
    77,944.84/107,563.21 = 42,134.54/x
  3. Step 3: Cross multiply
    77,944.84x = 107,563.21 × 42,134.54
  4. Step 4: Simplify right side
    77,944.84x = 4,532,125,731.12
  5. Step 5: Solve for x
    x = 4,532,125,731.12/77,944.84
  6. Step 6: Final answer
    x = 58,145.30

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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.