Home / 57,746.78-86,620.18-21,730.02

Finding the Fourth Proportional to 57,746.78, 86,620.18 and 21,730.02

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Solution

The fourth proportional to 57,746.78, 86,620.18 and 21,730.02 is: 32,595.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,746.78 : 86,620.18 = 21,730.02 : x
  2. Step 2: Convert to fraction form
    57,746.78/86,620.18 = 21,730.02/x
  3. Step 3: Cross multiply
    57,746.78x = 86,620.18 × 21,730.02
  4. Step 4: Simplify right side
    57,746.78x = 1,882,257,810.70
  5. Step 5: Solve for x
    x = 1,882,257,810.70/57,746.78
  6. Step 6: Final answer
    x = 32,595.03

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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.