Home / 76,966.85-106,238.45-45,148.61

Finding the Fourth Proportional to 76,966.85, 106,238.45 and 45,148.61

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Solution

The fourth proportional to 76,966.85, 106,238.45 and 45,148.61 is: 62,319.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,966.85 : 106,238.45 = 45,148.61 : x
  2. Step 2: Convert to fraction form
    76,966.85/106,238.45 = 45,148.61/x
  3. Step 3: Cross multiply
    76,966.85x = 106,238.45 × 45,148.61
  4. Step 4: Simplify right side
    76,966.85x = 4,796,518,346.05
  5. Step 5: Solve for x
    x = 4,796,518,346.05/76,966.85
  6. Step 6: Final answer
    x = 62,319.28

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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.