Home / 57,921.19-86,888.93-20,473.54

Finding the Fourth Proportional to 57,921.19, 86,888.93 and 20,473.54

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Solution

The fourth proportional to 57,921.19, 86,888.93 and 20,473.54 is: 30,712.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,921.19 : 86,888.93 = 20,473.54 : x
  2. Step 2: Convert to fraction form
    57,921.19/86,888.93 = 20,473.54/x
  3. Step 3: Cross multiply
    57,921.19x = 86,888.93 × 20,473.54
  4. Step 4: Simplify right side
    57,921.19x = 1,778,923,549.47
  5. Step 5: Solve for x
    x = 1,778,923,549.47/57,921.19
  6. Step 6: Final answer
    x = 30,712.83

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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.