Home / 78,659.24-108,555.80-44,678.39

Finding the Fourth Proportional to 78,659.24, 108,555.80 and 44,678.39

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Solution

The fourth proportional to 78,659.24, 108,555.80 and 44,678.39 is: 61,659.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,659.24 : 108,555.80 = 44,678.39 : x
  2. Step 2: Convert to fraction form
    78,659.24/108,555.80 = 44,678.39/x
  3. Step 3: Cross multiply
    78,659.24x = 108,555.80 × 44,678.39
  4. Step 4: Simplify right side
    78,659.24x = 4,850,097,602.99
  5. Step 5: Solve for x
    x = 4,850,097,602.99/78,659.24
  6. Step 6: Final answer
    x = 61,659.61

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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.