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Finding the Fourth Proportional to 63,653.53, 87,162.81 and 61,143.95

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Solution

The fourth proportional to 63,653.53, 87,162.81 and 61,143.95 is: 83,726.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,653.53 : 87,162.81 = 61,143.95 : x
  2. Step 2: Convert to fraction form
    63,653.53/87,162.81 = 61,143.95/x
  3. Step 3: Cross multiply
    63,653.53x = 87,162.81 × 61,143.95
  4. Step 4: Simplify right side
    63,653.53x = 5,329,478,060.69
  5. Step 5: Solve for x
    x = 5,329,478,060.69/63,653.53
  6. Step 6: Final answer
    x = 83,726.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.