Home / 79,904.64-119,840-23,745.28

Finding the Fourth Proportional to 79,904.64, 119,840 and 23,745.28

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Solution

The fourth proportional to 79,904.64, 119,840 and 23,745.28 is: 35,612.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,904.64 : 119,840 = 23,745.28 : x
  2. Step 2: Convert to fraction form
    79,904.64/119,840 = 23,745.28/x
  3. Step 3: Cross multiply
    79,904.64x = 119,840 × 23,745.28
  4. Step 4: Simplify right side
    79,904.64x = 2,845,634,355.20
  5. Step 5: Solve for x
    x = 2,845,634,355.20/79,904.64
  6. Step 6: Final answer
    x = 35,612.88

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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.