Home / 81,670.08-122,592.60-64,261.56

Finding the Fourth Proportional to 81,670.08, 122,592.60 and 64,261.56

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Solution

The fourth proportional to 81,670.08, 122,592.60 and 64,261.56 is: 96,461.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,670.08 : 122,592.60 = 64,261.56 : x
  2. Step 2: Convert to fraction form
    81,670.08/122,592.60 = 64,261.56/x
  3. Step 3: Cross multiply
    81,670.08x = 122,592.60 × 64,261.56
  4. Step 4: Simplify right side
    81,670.08x = 7,877,991,720.46
  5. Step 5: Solve for x
    x = 7,877,991,720.46/81,670.08
  6. Step 6: Final answer
    x = 96,461.17

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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.