Home / 82,757.04-124,038.34-38,289.86

Finding the Fourth Proportional to 82,757.04, 124,038.34 and 38,289.86

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Solution

The fourth proportional to 82,757.04, 124,038.34 and 38,289.86 is: 57,389.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,757.04 : 124,038.34 = 38,289.86 : x
  2. Step 2: Convert to fraction form
    82,757.04/124,038.34 = 38,289.86/x
  3. Step 3: Cross multiply
    82,757.04x = 124,038.34 × 38,289.86
  4. Step 4: Simplify right side
    82,757.04x = 4,749,410,673.23
  5. Step 5: Solve for x
    x = 4,749,410,673.23/82,757.04
  6. Step 6: Final answer
    x = 57,389.81

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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.