Home / 81,646.96-122,330.58-63,870.52

Finding the Fourth Proportional to 81,646.96, 122,330.58 and 63,870.52

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Solution

The fourth proportional to 81,646.96, 122,330.58 and 63,870.52 is: 95,696.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,646.96 : 122,330.58 = 63,870.52 : x
  2. Step 2: Convert to fraction form
    81,646.96/122,330.58 = 63,870.52/x
  3. Step 3: Cross multiply
    81,646.96x = 122,330.58 × 63,870.52
  4. Step 4: Simplify right side
    81,646.96x = 7,813,317,756.50
  5. Step 5: Solve for x
    x = 7,813,317,756.50/81,646.96
  6. Step 6: Final answer
    x = 95,696.37

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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.