Home / 57,570.02-86,355.30-20,129.93

Finding the Fourth Proportional to 57,570.02, 86,355.30 and 20,129.93

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Solution

The fourth proportional to 57,570.02, 86,355.30 and 20,129.93 is: 30,194.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,570.02 : 86,355.30 = 20,129.93 : x
  2. Step 2: Convert to fraction form
    57,570.02/86,355.30 = 20,129.93/x
  3. Step 3: Cross multiply
    57,570.02x = 86,355.30 × 20,129.93
  4. Step 4: Simplify right side
    57,570.02x = 1,738,326,144.13
  5. Step 5: Solve for x
    x = 1,738,326,144.13/57,570.02
  6. Step 6: Final answer
    x = 30,194.99

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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.