Home / 64,600.14-96,810-31,311.36

Finding the Fourth Proportional to 64,600.14, 96,810 and 31,311.36

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Solution

The fourth proportional to 64,600.14, 96,810 and 31,311.36 is: 46,923.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,600.14 : 96,810 = 31,311.36 : x
  2. Step 2: Convert to fraction form
    64,600.14/96,810 = 31,311.36/x
  3. Step 3: Cross multiply
    64,600.14x = 96,810 × 31,311.36
  4. Step 4: Simplify right side
    64,600.14x = 3,031,252,761.60
  5. Step 5: Solve for x
    x = 3,031,252,761.60/64,600.14
  6. Step 6: Final answer
    x = 46,923.32

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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.