Home / 42,767.31-64,161.51-14,687.79

Finding the Fourth Proportional to 42,767.31, 64,161.51 and 14,687.79

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Solution

The fourth proportional to 42,767.31, 64,161.51 and 14,687.79 is: 22,035.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,767.31 : 64,161.51 = 14,687.79 : x
  2. Step 2: Convert to fraction form
    42,767.31/64,161.51 = 14,687.79/x
  3. Step 3: Cross multiply
    42,767.31x = 64,161.51 × 14,687.79
  4. Step 4: Simplify right side
    42,767.31x = 942,390,784.96
  5. Step 5: Solve for x
    x = 942,390,784.96/42,767.31
  6. Step 6: Final answer
    x = 22,035.31

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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.