Home / 85,146.19-117,505.40-47,420.44

Finding the Fourth Proportional to 85,146.19, 117,505.40 and 47,420.44

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Solution

The fourth proportional to 85,146.19, 117,505.40 and 47,420.44 is: 65,442.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,146.19 : 117,505.40 = 47,420.44 : x
  2. Step 2: Convert to fraction form
    85,146.19/117,505.40 = 47,420.44/x
  3. Step 3: Cross multiply
    85,146.19x = 117,505.40 × 47,420.44
  4. Step 4: Simplify right side
    85,146.19x = 5,572,157,239.51
  5. Step 5: Solve for x
    x = 5,572,157,239.51/85,146.19
  6. Step 6: Final answer
    x = 65,442.24

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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.