Home / 57,921.01-86,888.67-20,473.36

Finding the Fourth Proportional to 57,921.01, 86,888.67 and 20,473.36

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Solution

The fourth proportional to 57,921.01, 86,888.67 and 20,473.36 is: 30,712.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,921.01 : 86,888.67 = 20,473.36 : x
  2. Step 2: Convert to fraction form
    57,921.01/86,888.67 = 20,473.36/x
  3. Step 3: Cross multiply
    57,921.01x = 86,888.67 × 20,473.36
  4. Step 4: Simplify right side
    57,921.01x = 1,778,903,020.83
  5. Step 5: Solve for x
    x = 1,778,903,020.83/57,921.01
  6. Step 6: Final answer
    x = 30,712.57

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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.