Home / 85,623.97-118,161.18-47,385.10

Finding the Fourth Proportional to 85,623.97, 118,161.18 and 47,385.10

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Solution

The fourth proportional to 85,623.97, 118,161.18 and 47,385.10 is: 65,391.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,623.97 : 118,161.18 = 47,385.10 : x
  2. Step 2: Convert to fraction form
    85,623.97/118,161.18 = 47,385.10/x
  3. Step 3: Cross multiply
    85,623.97x = 118,161.18 × 47,385.10
  4. Step 4: Simplify right side
    85,623.97x = 5,599,079,330.42
  5. Step 5: Solve for x
    x = 5,599,079,330.42/85,623.97
  6. Step 6: Final answer
    x = 65,391.49

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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.