Home / 82,865.06-124,312.20-30,347.90

Finding the Fourth Proportional to 82,865.06, 124,312.20 and 30,347.90

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Solution

The fourth proportional to 82,865.06, 124,312.20 and 30,347.90 is: 45,527.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,865.06 : 124,312.20 = 30,347.90 : x
  2. Step 2: Convert to fraction form
    82,865.06/124,312.20 = 30,347.90/x
  3. Step 3: Cross multiply
    82,865.06x = 124,312.20 × 30,347.90
  4. Step 4: Simplify right side
    82,865.06x = 3,772,614,214.38
  5. Step 5: Solve for x
    x = 3,772,614,214.38/82,865.06
  6. Step 6: Final answer
    x = 45,527.20

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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.