Home / 76,967.40-115,557.18-53,216.58

Finding the Fourth Proportional to 76,967.40, 115,557.18 and 53,216.58

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Solution

The fourth proportional to 76,967.40, 115,557.18 and 53,216.58 is: 79,898.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,967.40 : 115,557.18 = 53,216.58 : x
  2. Step 2: Convert to fraction form
    76,967.40/115,557.18 = 53,216.58/x
  3. Step 3: Cross multiply
    76,967.40x = 115,557.18 × 53,216.58
  4. Step 4: Simplify right side
    76,967.40x = 6,149,557,914.04
  5. Step 5: Solve for x
    x = 6,149,557,914.04/76,967.40
  6. Step 6: Final answer
    x = 79,898.22

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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.