Home / 78,752.22-118,206.09-34,409.58

Finding the Fourth Proportional to 78,752.22, 118,206.09 and 34,409.58

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Solution

The fourth proportional to 78,752.22, 118,206.09 and 34,409.58 is: 51,648.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,752.22 : 118,206.09 = 34,409.58 : x
  2. Step 2: Convert to fraction form
    78,752.22/118,206.09 = 34,409.58/x
  3. Step 3: Cross multiply
    78,752.22x = 118,206.09 × 34,409.58
  4. Step 4: Simplify right side
    78,752.22x = 4,067,421,910.34
  5. Step 5: Solve for x
    x = 4,067,421,910.34/78,752.22
  6. Step 6: Final answer
    x = 51,648.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.