Home / 82,973.19-124,420.91-30,345.87

Finding the Fourth Proportional to 82,973.19, 124,420.91 and 30,345.87

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Solution

The fourth proportional to 82,973.19, 124,420.91 and 30,345.87 is: 45,504.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,973.19 : 124,420.91 = 30,345.87 : x
  2. Step 2: Convert to fraction form
    82,973.19/124,420.91 = 30,345.87/x
  3. Step 3: Cross multiply
    82,973.19x = 124,420.91 × 30,345.87
  4. Step 4: Simplify right side
    82,973.19x = 3,775,660,608.41
  5. Step 5: Solve for x
    x = 3,775,660,608.41/82,973.19
  6. Step 6: Final answer
    x = 45,504.59

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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.