Home / 57,445.72-86,207.50-20,005.58

Finding the Fourth Proportional to 57,445.72, 86,207.50 and 20,005.58

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Solution

The fourth proportional to 57,445.72, 86,207.50 and 20,005.58 is: 30,021.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,445.72 : 86,207.50 = 20,005.58 : x
  2. Step 2: Convert to fraction form
    57,445.72/86,207.50 = 20,005.58/x
  3. Step 3: Cross multiply
    57,445.72x = 86,207.50 × 20,005.58
  4. Step 4: Simplify right side
    57,445.72x = 1,724,631,037.85
  5. Step 5: Solve for x
    x = 1,724,631,037.85/57,445.72
  6. Step 6: Final answer
    x = 30,021.92

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1.5x scale

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.