Home / 47,385.11-71,042.64-28,660.64

Finding the Fourth Proportional to 47,385.11, 71,042.64 and 28,660.64

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Solution

The fourth proportional to 47,385.11, 71,042.64 and 28,660.64 is: 42,969.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,385.11 : 71,042.64 = 28,660.64 : x
  2. Step 2: Convert to fraction form
    47,385.11/71,042.64 = 28,660.64/x
  3. Step 3: Cross multiply
    47,385.11x = 71,042.64 × 28,660.64
  4. Step 4: Simplify right side
    47,385.11x = 2,036,127,308.82
  5. Step 5: Solve for x
    x = 2,036,127,308.82/47,385.11
  6. Step 6: Final answer
    x = 42,969.77

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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.