Home / 55,693.12-83,564.16-20,625.28

Finding the Fourth Proportional to 55,693.12, 83,564.16 and 20,625.28

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Solution

The fourth proportional to 55,693.12, 83,564.16 and 20,625.28 is: 30,946.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,693.12 : 83,564.16 = 20,625.28 : x
  2. Step 2: Convert to fraction form
    55,693.12/83,564.16 = 20,625.28/x
  3. Step 3: Cross multiply
    55,693.12x = 83,564.16 × 20,625.28
  4. Step 4: Simplify right side
    55,693.12x = 1,723,534,197.96
  5. Step 5: Solve for x
    x = 1,723,534,197.96/55,693.12
  6. Step 6: Final answer
    x = 30,946.99

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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.