Home / 77,360.18-115,955.31-39,922.90

Finding the Fourth Proportional to 77,360.18, 115,955.31 and 39,922.90

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Solution

The fourth proportional to 77,360.18, 115,955.31 and 39,922.90 is: 59,840.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,360.18 : 115,955.31 = 39,922.90 : x
  2. Step 2: Convert to fraction form
    77,360.18/115,955.31 = 39,922.90/x
  3. Step 3: Cross multiply
    77,360.18x = 115,955.31 × 39,922.90
  4. Step 4: Simplify right side
    77,360.18x = 4,629,272,245.60
  5. Step 5: Solve for x
    x = 4,629,272,245.60/77,360.18
  6. Step 6: Final answer
    x = 59,840.51

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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.