Home / 78,627.95-117,858.88-38,591.24

Finding the Fourth Proportional to 78,627.95, 117,858.88 and 38,591.24

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Solution

The fourth proportional to 78,627.95, 117,858.88 and 38,591.24 is: 57,846.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,627.95 : 117,858.88 = 38,591.24 : x
  2. Step 2: Convert to fraction form
    78,627.95/117,858.88 = 38,591.24/x
  3. Step 3: Cross multiply
    78,627.95x = 117,858.88 × 38,591.24
  4. Step 4: Simplify right side
    78,627.95x = 4,548,319,566.08
  5. Step 5: Solve for x
    x = 4,548,319,566.08/78,627.95
  6. Step 6: Final answer
    x = 57,846.09

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1.5x scale

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.