Home / 81,545.04-122,339.43-64,967.58

Finding the Fourth Proportional to 81,545.04, 122,339.43 and 64,967.58

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Solution

The fourth proportional to 81,545.04, 122,339.43 and 64,967.58 is: 97,468.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,545.04 : 122,339.43 = 64,967.58 : x
  2. Step 2: Convert to fraction form
    81,545.04/122,339.43 = 64,967.58/x
  3. Step 3: Cross multiply
    81,545.04x = 122,339.43 × 64,967.58
  4. Step 4: Simplify right side
    81,545.04x = 7,948,096,705.68
  5. Step 5: Solve for x
    x = 7,948,096,705.68/81,545.04
  6. Step 6: Final answer
    x = 97,468.79

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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.