Home / 42,859.74-64,304.76-19,165.08

Finding the Fourth Proportional to 42,859.74, 64,304.76 and 19,165.08

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Solution

The fourth proportional to 42,859.74, 64,304.76 and 19,165.08 is: 28,754.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,859.74 : 64,304.76 = 19,165.08 : x
  2. Step 2: Convert to fraction form
    42,859.74/64,304.76 = 19,165.08/x
  3. Step 3: Cross multiply
    42,859.74x = 64,304.76 × 19,165.08
  4. Step 4: Simplify right side
    42,859.74x = 1,232,405,869.78
  5. Step 5: Solve for x
    x = 1,232,405,869.78/42,859.74
  6. Step 6: Final answer
    x = 28,754.39

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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.