Home / 51,530.85-77,318.28-21,962.61

Finding the Fourth Proportional to 51,530.85, 77,318.28 and 21,962.61

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Solution

The fourth proportional to 51,530.85, 77,318.28 and 21,962.61 is: 32,953.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,530.85 : 77,318.28 = 21,962.61 : x
  2. Step 2: Convert to fraction form
    51,530.85/77,318.28 = 21,962.61/x
  3. Step 3: Cross multiply
    51,530.85x = 77,318.28 × 21,962.61
  4. Step 4: Simplify right side
    51,530.85x = 1,698,111,229.51
  5. Step 5: Solve for x
    x = 1,698,111,229.51/51,530.85
  6. Step 6: Final answer
    x = 32,953.29

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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.