Home / 78,929.80-108,905.22-47,092.52

Finding the Fourth Proportional to 78,929.80, 108,905.22 and 47,092.52

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Solution

The fourth proportional to 78,929.80, 108,905.22 and 47,092.52 is: 64,977.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,929.80 : 108,905.22 = 47,092.52 : x
  2. Step 2: Convert to fraction form
    78,929.80/108,905.22 = 47,092.52/x
  3. Step 3: Cross multiply
    78,929.80x = 108,905.22 × 47,092.52
  4. Step 4: Simplify right side
    78,929.80x = 5,128,621,250.95
  5. Step 5: Solve for x
    x = 5,128,621,250.95/78,929.80
  6. Step 6: Final answer
    x = 64,977.00

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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.