Home / 69,840.18-96,380.37-39,623.22

Finding the Fourth Proportional to 69,840.18, 96,380.37 and 39,623.22

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Solution

The fourth proportional to 69,840.18, 96,380.37 and 39,623.22 is: 54,680.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,840.18 : 96,380.37 = 39,623.22 : x
  2. Step 2: Convert to fraction form
    69,840.18/96,380.37 = 39,623.22/x
  3. Step 3: Cross multiply
    69,840.18x = 96,380.37 × 39,623.22
  4. Step 4: Simplify right side
    69,840.18x = 3,818,900,604.19
  5. Step 5: Solve for x
    x = 3,818,900,604.19/69,840.18
  6. Step 6: Final answer
    x = 54,680.57

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1.5x scale

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.