Home / 57,852.23-86,792.19-20,420.71

Finding the Fourth Proportional to 57,852.23, 86,792.19 and 20,420.71

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Solution

The fourth proportional to 57,852.23, 86,792.19 and 20,420.71 is: 30,635.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,852.23 : 86,792.19 = 20,420.71 : x
  2. Step 2: Convert to fraction form
    57,852.23/86,792.19 = 20,420.71/x
  3. Step 3: Cross multiply
    57,852.23x = 86,792.19 × 20,420.71
  4. Step 4: Simplify right side
    57,852.23x = 1,772,357,708.29
  5. Step 5: Solve for x
    x = 1,772,357,708.29/57,852.23
  6. Step 6: Final answer
    x = 30,635.94

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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.