Home / 55,475.48-83,205.02-20,406.94

Finding the Fourth Proportional to 55,475.48, 83,205.02 and 20,406.94

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Solution

The fourth proportional to 55,475.48, 83,205.02 and 20,406.94 is: 30,607.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,475.48 : 83,205.02 = 20,406.94 : x
  2. Step 2: Convert to fraction form
    55,475.48/83,205.02 = 20,406.94/x
  3. Step 3: Cross multiply
    55,475.48x = 83,205.02 × 20,406.94
  4. Step 4: Simplify right side
    55,475.48x = 1,697,959,693.84
  5. Step 5: Solve for x
    x = 1,697,959,693.84/55,475.48
  6. Step 6: Final answer
    x = 30,607.39

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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.