Home / 79,358.13-109,509.86-43,545.31

Finding the Fourth Proportional to 79,358.13, 109,509.86 and 43,545.31

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Solution

The fourth proportional to 79,358.13, 109,509.86 and 43,545.31 is: 60,090.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,358.13 : 109,509.86 = 43,545.31 : x
  2. Step 2: Convert to fraction form
    79,358.13/109,509.86 = 43,545.31/x
  3. Step 3: Cross multiply
    79,358.13x = 109,509.86 × 43,545.31
  4. Step 4: Simplify right side
    79,358.13x = 4,768,641,007.90
  5. Step 5: Solve for x
    x = 4,768,641,007.90/79,358.13
  6. Step 6: Final answer
    x = 60,090.14

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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.