Home / 51,318.96-70,816.13-28,656.18

Finding the Fourth Proportional to 51,318.96, 70,816.13 and 28,656.18

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Solution

The fourth proportional to 51,318.96, 70,816.13 and 28,656.18 is: 39,543.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,318.96 : 70,816.13 = 28,656.18 : x
  2. Step 2: Convert to fraction form
    51,318.96/70,816.13 = 28,656.18/x
  3. Step 3: Cross multiply
    51,318.96x = 70,816.13 × 28,656.18
  4. Step 4: Simplify right side
    51,318.96x = 2,029,319,624.90
  5. Step 5: Solve for x
    x = 2,029,319,624.90/51,318.96
  6. Step 6: Final answer
    x = 39,543.27

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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.