Home / 79,638.48-109,898.78-43,828.47

Finding the Fourth Proportional to 79,638.48, 109,898.78 and 43,828.47

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Solution

The fourth proportional to 79,638.48, 109,898.78 and 43,828.47 is: 60,482.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,638.48 : 109,898.78 = 43,828.47 : x
  2. Step 2: Convert to fraction form
    79,638.48/109,898.78 = 43,828.47/x
  3. Step 3: Cross multiply
    79,638.48x = 109,898.78 × 43,828.47
  4. Step 4: Simplify right side
    79,638.48x = 4,816,695,163.12
  5. Step 5: Solve for x
    x = 4,816,695,163.12/79,638.48
  6. Step 6: Final answer
    x = 60,482.01

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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.