Home / 90,060.36-134,999.82-43,287.72

Finding the Fourth Proportional to 90,060.36, 134,999.82 and 43,287.72

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Solution

The fourth proportional to 90,060.36, 134,999.82 and 43,287.72 is: 64,887.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,060.36 : 134,999.82 = 43,287.72 : x
  2. Step 2: Convert to fraction form
    90,060.36/134,999.82 = 43,287.72/x
  3. Step 3: Cross multiply
    90,060.36x = 134,999.82 × 43,287.72
  4. Step 4: Simplify right side
    90,060.36x = 5,843,834,408.21
  5. Step 5: Solve for x
    x = 5,843,834,408.21/90,060.36
  6. Step 6: Final answer
    x = 64,887.98

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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.