Home / 76,935.08-115,415.58-35,381

Finding the Fourth Proportional to 76,935.08, 115,415.58 and 35,381

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Solution

The fourth proportional to 76,935.08, 115,415.58 and 35,381 is: 53,077.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,935.08 : 115,415.58 = 35,381 : x
  2. Step 2: Convert to fraction form
    76,935.08/115,415.58 = 35,381/x
  3. Step 3: Cross multiply
    76,935.08x = 115,415.58 × 35,381
  4. Step 4: Simplify right side
    76,935.08x = 4,083,518,635.98
  5. Step 5: Solve for x
    x = 4,083,518,635.98/76,935.08
  6. Step 6: Final answer
    x = 53,077.46

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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.