Home / 77,944.41-107,538.81-47,698.20

Finding the Fourth Proportional to 77,944.41, 107,538.81 and 47,698.20

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Solution

The fourth proportional to 77,944.41, 107,538.81 and 47,698.20 is: 65,808.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,944.41 : 107,538.81 = 47,698.20 : x
  2. Step 2: Convert to fraction form
    77,944.41/107,538.81 = 47,698.20/x
  3. Step 3: Cross multiply
    77,944.41x = 107,538.81 × 47,698.20
  4. Step 4: Simplify right side
    77,944.41x = 5,129,407,667.14
  5. Step 5: Solve for x
    x = 5,129,407,667.14/77,944.41
  6. Step 6: Final answer
    x = 65,808.54

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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.