Home / 42,869.52-64,308.60-11,705.04

Finding the Fourth Proportional to 42,869.52, 64,308.60 and 11,705.04

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Solution

The fourth proportional to 42,869.52, 64,308.60 and 11,705.04 is: 17,558.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,869.52 : 64,308.60 = 11,705.04 : x
  2. Step 2: Convert to fraction form
    42,869.52/64,308.60 = 11,705.04/x
  3. Step 3: Cross multiply
    42,869.52x = 64,308.60 × 11,705.04
  4. Step 4: Simplify right side
    42,869.52x = 752,734,735.34
  5. Step 5: Solve for x
    x = 752,734,735.34/42,869.52
  6. Step 6: Final answer
    x = 17,558.74

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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.