Home / 65,604.08-90,437.64-52,180.40

Finding the Fourth Proportional to 65,604.08, 90,437.64 and 52,180.40

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Solution

The fourth proportional to 65,604.08, 90,437.64 and 52,180.40 is: 71,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,604.08 : 90,437.64 = 52,180.40 : x
  2. Step 2: Convert to fraction form
    65,604.08/90,437.64 = 52,180.40/x
  3. Step 3: Cross multiply
    65,604.08x = 90,437.64 × 52,180.40
  4. Step 4: Simplify right side
    65,604.08x = 4,719,072,230.26
  5. Step 5: Solve for x
    x = 4,719,072,230.26/65,604.08
  6. Step 6: Final answer
    x = 71,932.60

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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.