Home / 57,201.10-85,801.65-38,490.10

Finding the Fourth Proportional to 57,201.10, 85,801.65 and 38,490.10

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Solution

The fourth proportional to 57,201.10, 85,801.65 and 38,490.10 is: 57,735.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,201.10 : 85,801.65 = 38,490.10 : x
  2. Step 2: Convert to fraction form
    57,201.10/85,801.65 = 38,490.10/x
  3. Step 3: Cross multiply
    57,201.10x = 85,801.65 × 38,490.10
  4. Step 4: Simplify right side
    57,201.10x = 3,302,514,088.67
  5. Step 5: Solve for x
    x = 3,302,514,088.67/57,201.10
  6. Step 6: Final answer
    x = 57,735.15

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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.