Home / 81,672.08-122,595.60-64,263.56

Finding the Fourth Proportional to 81,672.08, 122,595.60 and 64,263.56

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Solution

The fourth proportional to 81,672.08, 122,595.60 and 64,263.56 is: 96,464.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,672.08 : 122,595.60 = 64,263.56 : x
  2. Step 2: Convert to fraction form
    81,672.08/122,595.60 = 64,263.56/x
  3. Step 3: Cross multiply
    81,672.08x = 122,595.60 × 64,263.56
  4. Step 4: Simplify right side
    81,672.08x = 7,878,429,696.34
  5. Step 5: Solve for x
    x = 7,878,429,696.34/81,672.08
  6. Step 6: Final answer
    x = 96,464.17

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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.