Home / 42,703.92-64,046.16-11,541.60

Finding the Fourth Proportional to 42,703.92, 64,046.16 and 11,541.60

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Solution

The fourth proportional to 42,703.92, 64,046.16 and 11,541.60 is: 17,309.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,703.92 : 64,046.16 = 11,541.60 : x
  2. Step 2: Convert to fraction form
    42,703.92/64,046.16 = 11,541.60/x
  3. Step 3: Cross multiply
    42,703.92x = 64,046.16 × 11,541.60
  4. Step 4: Simplify right side
    42,703.92x = 739,195,160.26
  5. Step 5: Solve for x
    x = 739,195,160.26/42,703.92
  6. Step 6: Final answer
    x = 17,309.77

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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.