Home / 78,421.88-117,566.67-34,015.19

Finding the Fourth Proportional to 78,421.88, 117,566.67 and 34,015.19

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Solution

The fourth proportional to 78,421.88, 117,566.67 and 34,015.19 is: 50,994.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,421.88 : 117,566.67 = 34,015.19 : x
  2. Step 2: Convert to fraction form
    78,421.88/117,566.67 = 34,015.19/x
  3. Step 3: Cross multiply
    78,421.88x = 117,566.67 × 34,015.19
  4. Step 4: Simplify right side
    78,421.88x = 3,999,052,029.88
  5. Step 5: Solve for x
    x = 3,999,052,029.88/78,421.88
  6. Step 6: Final answer
    x = 50,994.09

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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.