Home / 57,917.04-86,875.48-20,456.76

Finding the Fourth Proportional to 57,917.04, 86,875.48 and 20,456.76

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Solution

The fourth proportional to 57,917.04, 86,875.48 and 20,456.76 is: 30,685.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,917.04 : 86,875.48 = 20,456.76 : x
  2. Step 2: Convert to fraction form
    57,917.04/86,875.48 = 20,456.76/x
  3. Step 3: Cross multiply
    57,917.04x = 86,875.48 × 20,456.76
  4. Step 4: Simplify right side
    57,917.04x = 1,777,190,844.24
  5. Step 5: Solve for x
    x = 1,777,190,844.24/57,917.04
  6. Step 6: Final answer
    x = 30,685.11

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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.