Home / 77,284.64-115,848.52-43,935.78

Finding the Fourth Proportional to 77,284.64, 115,848.52 and 43,935.78

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Solution

The fourth proportional to 77,284.64, 115,848.52 and 43,935.78 is: 65,859.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,284.64 : 115,848.52 = 43,935.78 : x
  2. Step 2: Convert to fraction form
    77,284.64/115,848.52 = 43,935.78/x
  3. Step 3: Cross multiply
    77,284.64x = 115,848.52 × 43,935.78
  4. Step 4: Simplify right side
    77,284.64x = 5,089,895,088.05
  5. Step 5: Solve for x
    x = 5,089,895,088.05/77,284.64
  6. Step 6: Final answer
    x = 65,859.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.