Home / 76,442.16-114,633.72-29,688.72

Finding the Fourth Proportional to 76,442.16, 114,633.72 and 29,688.72

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Solution

The fourth proportional to 76,442.16, 114,633.72 and 29,688.72 is: 44,521.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,442.16 : 114,633.72 = 29,688.72 : x
  2. Step 2: Convert to fraction form
    76,442.16/114,633.72 = 29,688.72/x
  3. Step 3: Cross multiply
    76,442.16x = 114,633.72 × 29,688.72
  4. Step 4: Simplify right side
    76,442.16x = 3,403,328,415.64
  5. Step 5: Solve for x
    x = 3,403,328,415.64/76,442.16
  6. Step 6: Final answer
    x = 44,521.61

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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.