Home / 78,552.06-117,742.40-38,598.54

Finding the Fourth Proportional to 78,552.06, 117,742.40 and 38,598.54

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Solution

The fourth proportional to 78,552.06, 117,742.40 and 38,598.54 is: 57,855.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,552.06 : 117,742.40 = 38,598.54 : x
  2. Step 2: Convert to fraction form
    78,552.06/117,742.40 = 38,598.54/x
  3. Step 3: Cross multiply
    78,552.06x = 117,742.40 × 38,598.54
  4. Step 4: Simplify right side
    78,552.06x = 4,544,684,736.10
  5. Step 5: Solve for x
    x = 4,544,684,736.10/78,552.06
  6. Step 6: Final answer
    x = 57,855.70

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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.