Home / 66,087.36-99,120.24-21,712.32

Finding the Fourth Proportional to 66,087.36, 99,120.24 and 21,712.32

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Solution

The fourth proportional to 66,087.36, 99,120.24 and 21,712.32 is: 32,564.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,087.36 : 99,120.24 = 21,712.32 : x
  2. Step 2: Convert to fraction form
    66,087.36/99,120.24 = 21,712.32/x
  3. Step 3: Cross multiply
    66,087.36x = 99,120.24 × 21,712.32
  4. Step 4: Simplify right side
    66,087.36x = 2,152,130,369.36
  5. Step 5: Solve for x
    x = 2,152,130,369.36/66,087.36
  6. Step 6: Final answer
    x = 32,564.93

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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.