Home / 42,789.64-64,199.66-19,095.03

Finding the Fourth Proportional to 42,789.64, 64,199.66 and 19,095.03

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Solution

The fourth proportional to 42,789.64, 64,199.66 and 19,095.03 is: 28,649.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,789.64 : 64,199.66 = 19,095.03 : x
  2. Step 2: Convert to fraction form
    42,789.64/64,199.66 = 19,095.03/x
  3. Step 3: Cross multiply
    42,789.64x = 64,199.66 × 19,095.03
  4. Step 4: Simplify right side
    42,789.64x = 1,225,894,433.69
  5. Step 5: Solve for x
    x = 1,225,894,433.69/42,789.64
  6. Step 6: Final answer
    x = 28,649.33

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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.