Home / 55,641.20-83,403.47-20,558.48

Finding the Fourth Proportional to 55,641.20, 83,403.47 and 20,558.48

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Solution

The fourth proportional to 55,641.20, 83,403.47 and 20,558.48 is: 30,816.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,641.20 : 83,403.47 = 20,558.48 : x
  2. Step 2: Convert to fraction form
    55,641.20/83,403.47 = 20,558.48/x
  3. Step 3: Cross multiply
    55,641.20x = 83,403.47 × 20,558.48
  4. Step 4: Simplify right side
    55,641.20x = 1,714,648,152.91
  5. Step 5: Solve for x
    x = 1,714,648,152.91/55,641.20
  6. Step 6: Final answer
    x = 30,816.16

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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.