Home / 67,840.32-101,765.36-17,919.77

Finding the Fourth Proportional to 67,840.32, 101,765.36 and 17,919.77

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Solution

The fourth proportional to 67,840.32, 101,765.36 and 17,919.77 is: 26,880.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,840.32 : 101,765.36 = 17,919.77 : x
  2. Step 2: Convert to fraction form
    67,840.32/101,765.36 = 17,919.77/x
  3. Step 3: Cross multiply
    67,840.32x = 101,765.36 × 17,919.77
  4. Step 4: Simplify right side
    67,840.32x = 1,823,611,280.34
  5. Step 5: Solve for x
    x = 1,823,611,280.34/67,840.32
  6. Step 6: Final answer
    x = 26,880.94

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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.