Home / 82,867.06-124,315.20-30,349.90

Finding the Fourth Proportional to 82,867.06, 124,315.20 and 30,349.90

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Solution

The fourth proportional to 82,867.06, 124,315.20 and 30,349.90 is: 45,530.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,867.06 : 124,315.20 = 30,349.90 : x
  2. Step 2: Convert to fraction form
    82,867.06/124,315.20 = 30,349.90/x
  3. Step 3: Cross multiply
    82,867.06x = 124,315.20 × 30,349.90
  4. Step 4: Simplify right side
    82,867.06x = 3,772,953,888.48
  5. Step 5: Solve for x
    x = 3,772,953,888.48/82,867.06
  6. Step 6: Final answer
    x = 45,530.20

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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.