Home / 82,756.48-124,037.50-38,289.31

Finding the Fourth Proportional to 82,756.48, 124,037.50 and 38,289.31

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Solution

The fourth proportional to 82,756.48, 124,037.50 and 38,289.31 is: 57,388.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,756.48 : 124,037.50 = 38,289.31 : x
  2. Step 2: Convert to fraction form
    82,756.48/124,037.50 = 38,289.31/x
  3. Step 3: Cross multiply
    82,756.48x = 124,037.50 × 38,289.31
  4. Step 4: Simplify right side
    82,756.48x = 4,749,310,289.13
  5. Step 5: Solve for x
    x = 4,749,310,289.13/82,756.48
  6. Step 6: Final answer
    x = 57,388.98

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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.