Home / 78,400.58-108,196.56-48,187.17

Finding the Fourth Proportional to 78,400.58, 108,196.56 and 48,187.17

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Solution

The fourth proportional to 78,400.58, 108,196.56 and 48,187.17 is: 66,500.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,400.58 : 108,196.56 = 48,187.17 : x
  2. Step 2: Convert to fraction form
    78,400.58/108,196.56 = 48,187.17/x
  3. Step 3: Cross multiply
    78,400.58x = 108,196.56 × 48,187.17
  4. Step 4: Simplify right side
    78,400.58x = 5,213,686,030.14
  5. Step 5: Solve for x
    x = 5,213,686,030.14/78,400.58
  6. Step 6: Final answer
    x = 66,500.61

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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.