Home / 85,330.13-117,755.64-47,604.38

Finding the Fourth Proportional to 85,330.13, 117,755.64 and 47,604.38

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Solution

The fourth proportional to 85,330.13, 117,755.64 and 47,604.38 is: 65,694.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,330.13 : 117,755.64 = 47,604.38 : x
  2. Step 2: Convert to fraction form
    85,330.13/117,755.64 = 47,604.38/x
  3. Step 3: Cross multiply
    85,330.13x = 117,755.64 × 47,604.38
  4. Step 4: Simplify right side
    85,330.13x = 5,605,683,644.93
  5. Step 5: Solve for x
    x = 5,605,683,644.93/85,330.13
  6. Step 6: Final answer
    x = 65,694.08

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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.