Home / 76,209.39-105,133.95-49,360.86

Finding the Fourth Proportional to 76,209.39, 105,133.95 and 49,360.86

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Solution

The fourth proportional to 76,209.39, 105,133.95 and 49,360.86 is: 68,095.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,209.39 : 105,133.95 = 49,360.86 : x
  2. Step 2: Convert to fraction form
    76,209.39/105,133.95 = 49,360.86/x
  3. Step 3: Cross multiply
    76,209.39x = 105,133.95 × 49,360.86
  4. Step 4: Simplify right side
    76,209.39x = 5,189,502,187.20
  5. Step 5: Solve for x
    x = 5,189,502,187.20/76,209.39
  6. Step 6: Final answer
    x = 68,095.31

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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.