Home / 51,381.46-76,878.40-30,332.96

Finding the Fourth Proportional to 51,381.46, 76,878.40 and 30,332.96

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Solution

The fourth proportional to 51,381.46, 76,878.40 and 30,332.96 is: 45,385.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,381.46 : 76,878.40 = 30,332.96 : x
  2. Step 2: Convert to fraction form
    51,381.46/76,878.40 = 30,332.96/x
  3. Step 3: Cross multiply
    51,381.46x = 76,878.40 × 30,332.96
  4. Step 4: Simplify right side
    51,381.46x = 2,331,949,432.06
  5. Step 5: Solve for x
    x = 2,331,949,432.06/51,381.46
  6. Step 6: Final answer
    x = 45,385.04

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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.