Home / 77,635.56-107,106.66-47,775.72

Finding the Fourth Proportional to 77,635.56, 107,106.66 and 47,775.72

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Solution

The fourth proportional to 77,635.56, 107,106.66 and 47,775.72 is: 65,911.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,635.56 : 107,106.66 = 47,775.72 : x
  2. Step 2: Convert to fraction form
    77,635.56/107,106.66 = 47,775.72/x
  3. Step 3: Cross multiply
    77,635.56x = 107,106.66 × 47,775.72
  4. Step 4: Simplify right side
    77,635.56x = 5,117,097,798.30
  5. Step 5: Solve for x
    x = 5,117,097,798.30/77,635.56
  6. Step 6: Final answer
    x = 65,911.78

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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.