Home / 89,921.40-134,777.04-67,663.26

Finding the Fourth Proportional to 89,921.40, 134,777.04 and 67,663.26

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Solution

The fourth proportional to 89,921.40, 134,777.04 and 67,663.26 is: 101,415.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,921.40 : 134,777.04 = 67,663.26 : x
  2. Step 2: Convert to fraction form
    89,921.40/134,777.04 = 67,663.26/x
  3. Step 3: Cross multiply
    89,921.40x = 134,777.04 × 67,663.26
  4. Step 4: Simplify right side
    89,921.40x = 9,119,453,899.55
  5. Step 5: Solve for x
    x = 9,119,453,899.55/89,921.40
  6. Step 6: Final answer
    x = 101,415.84

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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.