Home / 78,526.85-117,745.52-53,597.08

Finding the Fourth Proportional to 78,526.85, 117,745.52 and 53,597.08

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Solution

The fourth proportional to 78,526.85, 117,745.52 and 53,597.08 is: 80,365.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,526.85 : 117,745.52 = 53,597.08 : x
  2. Step 2: Convert to fraction form
    78,526.85/117,745.52 = 53,597.08/x
  3. Step 3: Cross multiply
    78,526.85x = 117,745.52 × 53,597.08
  4. Step 4: Simplify right side
    78,526.85x = 6,310,816,055.08
  5. Step 5: Solve for x
    x = 6,310,816,055.08/78,526.85
  6. Step 6: Final answer
    x = 80,365.07

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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.