Home / 42,660.77-63,963.75-17,718.02

Finding the Fourth Proportional to 42,660.77, 63,963.75 and 17,718.02

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Solution

The fourth proportional to 42,660.77, 63,963.75 and 17,718.02 is: 26,565.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,660.77 : 63,963.75 = 17,718.02 : x
  2. Step 2: Convert to fraction form
    42,660.77/63,963.75 = 17,718.02/x
  3. Step 3: Cross multiply
    42,660.77x = 63,963.75 × 17,718.02
  4. Step 4: Simplify right side
    42,660.77x = 1,133,311,001.78
  5. Step 5: Solve for x
    x = 1,133,311,001.78/42,660.77
  6. Step 6: Final answer
    x = 26,565.65

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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.