Home / 82,767.40-124,151.10-30,178.60

Finding the Fourth Proportional to 82,767.40, 124,151.10 and 30,178.60

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Solution

The fourth proportional to 82,767.40, 124,151.10 and 30,178.60 is: 45,267.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,767.40 : 124,151.10 = 30,178.60 : x
  2. Step 2: Convert to fraction form
    82,767.40/124,151.10 = 30,178.60/x
  3. Step 3: Cross multiply
    82,767.40x = 124,151.10 × 30,178.60
  4. Step 4: Simplify right side
    82,767.40x = 3,746,706,386.46
  5. Step 5: Solve for x
    x = 3,746,706,386.46/82,767.40
  6. Step 6: Final answer
    x = 45,267.90

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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.