Home / 51,032.16-76,518-19,830.96

Finding the Fourth Proportional to 51,032.16, 76,518 and 19,830.96

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Solution

The fourth proportional to 51,032.16, 76,518 and 19,830.96 is: 29,734.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,032.16 : 76,518 = 19,830.96 : x
  2. Step 2: Convert to fraction form
    51,032.16/76,518 = 19,830.96/x
  3. Step 3: Cross multiply
    51,032.16x = 76,518 × 19,830.96
  4. Step 4: Simplify right side
    51,032.16x = 1,517,425,397.28
  5. Step 5: Solve for x
    x = 1,517,425,397.28/51,032.16
  6. Step 6: Final answer
    x = 29,734.69

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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.