Home / 427,581.36-641,408.64-112,038.24

Finding the Fourth Proportional to 427,581.36, 641,408.64 and 112,038.24

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Solution

The fourth proportional to 427,581.36, 641,408.64 and 112,038.24 is: 168,066.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,581.36 : 641,408.64 = 112,038.24 : x
  2. Step 2: Convert to fraction form
    427,581.36/641,408.64 = 112,038.24/x
  3. Step 3: Cross multiply
    427,581.36x = 641,408.64 × 112,038.24
  4. Step 4: Simplify right side
    427,581.36x = 71,862,295,146.39
  5. Step 5: Solve for x
    x = 71,862,295,146.39/427,581.36
  6. Step 6: Final answer
    x = 168,066.95

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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.