Home / 78,551.06-117,740.90-38,597.54

Finding the Fourth Proportional to 78,551.06, 117,740.90 and 38,597.54

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Solution

The fourth proportional to 78,551.06, 117,740.90 and 38,597.54 is: 57,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,551.06 : 117,740.90 = 38,597.54 : x
  2. Step 2: Convert to fraction form
    78,551.06/117,740.90 = 38,597.54/x
  3. Step 3: Cross multiply
    78,551.06x = 117,740.90 × 38,597.54
  4. Step 4: Simplify right side
    78,551.06x = 4,544,509,097.39
  5. Step 5: Solve for x
    x = 4,544,509,097.39/78,551.06
  6. Step 6: Final answer
    x = 57,854.20

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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.