Home / 56,636.79-84,902.12-19,170.64

Finding the Fourth Proportional to 56,636.79, 84,902.12 and 19,170.64

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Solution

The fourth proportional to 56,636.79, 84,902.12 and 19,170.64 is: 28,738.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,636.79 : 84,902.12 = 19,170.64 : x
  2. Step 2: Convert to fraction form
    56,636.79/84,902.12 = 19,170.64/x
  3. Step 3: Cross multiply
    56,636.79x = 84,902.12 × 19,170.64
  4. Step 4: Simplify right side
    56,636.79x = 1,627,627,977.76
  5. Step 5: Solve for x
    x = 1,627,627,977.76/56,636.79
  6. Step 6: Final answer
    x = 28,738.00

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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.