Home / 85,146.24-117,505.46-47,420.49

Finding the Fourth Proportional to 85,146.24, 117,505.46 and 47,420.49

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Solution

The fourth proportional to 85,146.24, 117,505.46 and 47,420.49 is: 65,442.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,146.24 : 117,505.46 = 47,420.49 : x
  2. Step 2: Convert to fraction form
    85,146.24/117,505.46 = 47,420.49/x
  3. Step 3: Cross multiply
    85,146.24x = 117,505.46 × 47,420.49
  4. Step 4: Simplify right side
    85,146.24x = 5,572,166,490.88
  5. Step 5: Solve for x
    x = 5,572,166,490.88/85,146.24
  6. Step 6: Final answer
    x = 65,442.31

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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.