Home / 76,975.12-106,225.32-43,440.88

Finding the Fourth Proportional to 76,975.12, 106,225.32 and 43,440.88

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Solution

The fourth proportional to 76,975.12, 106,225.32 and 43,440.88 is: 59,948.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,975.12 : 106,225.32 = 43,440.88 : x
  2. Step 2: Convert to fraction form
    76,975.12/106,225.32 = 43,440.88/x
  3. Step 3: Cross multiply
    76,975.12x = 106,225.32 × 43,440.88
  4. Step 4: Simplify right side
    76,975.12x = 4,614,521,379.08
  5. Step 5: Solve for x
    x = 4,614,521,379.08/76,975.12
  6. Step 6: Final answer
    x = 59,948.22

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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.