Home / 55,403.29-83,055.68-20,334.75

Finding the Fourth Proportional to 55,403.29, 83,055.68 and 20,334.75

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Solution

The fourth proportional to 55,403.29, 83,055.68 and 20,334.75 is: 30,484.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,403.29 : 83,055.68 = 20,334.75 : x
  2. Step 2: Convert to fraction form
    55,403.29/83,055.68 = 20,334.75/x
  3. Step 3: Cross multiply
    55,403.29x = 83,055.68 × 20,334.75
  4. Step 4: Simplify right side
    55,403.29x = 1,688,916,152.00
  5. Step 5: Solve for x
    x = 1,688,916,152.00/55,403.29
  6. Step 6: Final answer
    x = 30,484.04

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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.