Home / 78,345.89-108,124.02-44,360.36

Finding the Fourth Proportional to 78,345.89, 108,124.02 and 44,360.36

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Solution

The fourth proportional to 78,345.89, 108,124.02 and 44,360.36 is: 61,221.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,345.89 : 108,124.02 = 44,360.36 : x
  2. Step 2: Convert to fraction form
    78,345.89/108,124.02 = 44,360.36/x
  3. Step 3: Cross multiply
    78,345.89x = 108,124.02 × 44,360.36
  4. Step 4: Simplify right side
    78,345.89x = 4,796,420,451.85
  5. Step 5: Solve for x
    x = 4,796,420,451.85/78,345.89
  6. Step 6: Final answer
    x = 61,221.09

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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.