Home / 78,560.12-108,415.24-42,752.44

Finding the Fourth Proportional to 78,560.12, 108,415.24 and 42,752.44

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Solution

The fourth proportional to 78,560.12, 108,415.24 and 42,752.44 is: 58,999.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,560.12 : 108,415.24 = 42,752.44 : x
  2. Step 2: Convert to fraction form
    78,560.12/108,415.24 = 42,752.44/x
  3. Step 3: Cross multiply
    78,560.12x = 108,415.24 × 42,752.44
  4. Step 4: Simplify right side
    78,560.12x = 4,635,016,043.19
  5. Step 5: Solve for x
    x = 4,635,016,043.19/78,560.12
  6. Step 6: Final answer
    x = 58,999.60

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1.5x scale

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.