Home / 78,518.88-108,358.72-44,991.36

Finding the Fourth Proportional to 78,518.88, 108,358.72 and 44,991.36

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Solution

The fourth proportional to 78,518.88, 108,358.72 and 44,991.36 is: 62,089.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,518.88 : 108,358.72 = 44,991.36 : x
  2. Step 2: Convert to fraction form
    78,518.88/108,358.72 = 44,991.36/x
  3. Step 3: Cross multiply
    78,518.88x = 108,358.72 × 44,991.36
  4. Step 4: Simplify right side
    78,518.88x = 4,875,206,180.66
  5. Step 5: Solve for x
    x = 4,875,206,180.66/78,518.88
  6. Step 6: Final answer
    x = 62,089.60

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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.