Home / 42,735.01-64,102.56-11,145.04

Finding the Fourth Proportional to 42,735.01, 64,102.56 and 11,145.04

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Solution

The fourth proportional to 42,735.01, 64,102.56 and 11,145.04 is: 16,717.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,735.01 : 64,102.56 = 11,145.04 : x
  2. Step 2: Convert to fraction form
    42,735.01/64,102.56 = 11,145.04/x
  3. Step 3: Cross multiply
    42,735.01x = 64,102.56 × 11,145.04
  4. Step 4: Simplify right side
    42,735.01x = 714,425,595.30
  5. Step 5: Solve for x
    x = 714,425,595.30/42,735.01
  6. Step 6: Final answer
    x = 16,717.57

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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.