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Finding the Fourth Proportional to 63,415.36, 87,474.88 and 40,746.72

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Solution

The fourth proportional to 63,415.36, 87,474.88 and 40,746.72 is: 56,205.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,415.36 : 87,474.88 = 40,746.72 : x
  2. Step 2: Convert to fraction form
    63,415.36/87,474.88 = 40,746.72/x
  3. Step 3: Cross multiply
    63,415.36x = 87,474.88 × 40,746.72
  4. Step 4: Simplify right side
    63,415.36x = 3,564,314,442.39
  5. Step 5: Solve for x
    x = 3,564,314,442.39/63,415.36
  6. Step 6: Final answer
    x = 56,205.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.