Home / 79,580.07-109,783.58-47,693.61

Finding the Fourth Proportional to 79,580.07, 109,783.58 and 47,693.61

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Solution

The fourth proportional to 79,580.07, 109,783.58 and 47,693.61 is: 65,795.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,580.07 : 109,783.58 = 47,693.61 : x
  2. Step 2: Convert to fraction form
    79,580.07/109,783.58 = 47,693.61/x
  3. Step 3: Cross multiply
    79,580.07x = 109,783.58 × 47,693.61
  4. Step 4: Simplify right side
    79,580.07x = 5,235,975,010.46
  5. Step 5: Solve for x
    x = 5,235,975,010.46/79,580.07
  6. Step 6: Final answer
    x = 65,795.05

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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.