Home / 78,074.25-117,147.66-24,774.63

Finding the Fourth Proportional to 78,074.25, 117,147.66 and 24,774.63

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Solution

The fourth proportional to 78,074.25, 117,147.66 and 24,774.63 is: 37,173.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,074.25 : 117,147.66 = 24,774.63 : x
  2. Step 2: Convert to fraction form
    78,074.25/117,147.66 = 24,774.63/x
  3. Step 3: Cross multiply
    78,074.25x = 117,147.66 × 24,774.63
  4. Step 4: Simplify right side
    78,074.25x = 2,902,289,931.87
  5. Step 5: Solve for x
    x = 2,902,289,931.87/78,074.25
  6. Step 6: Final answer
    x = 37,173.46

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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.