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Finding the Fourth Proportional to 64,090.80, 96,135.30 and 29,030.40

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Solution

The fourth proportional to 64,090.80, 96,135.30 and 29,030.40 is: 43,545.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,090.80 : 96,135.30 = 29,030.40 : x
  2. Step 2: Convert to fraction form
    64,090.80/96,135.30 = 29,030.40/x
  3. Step 3: Cross multiply
    64,090.80x = 96,135.30 × 29,030.40
  4. Step 4: Simplify right side
    64,090.80x = 2,790,846,213.12
  5. Step 5: Solve for x
    x = 2,790,846,213.12/64,090.80
  6. Step 6: Final answer
    x = 43,545.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.