Home / 81,915.18-122,901.81-46,884.30

Finding the Fourth Proportional to 81,915.18, 122,901.81 and 46,884.30

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Solution

The fourth proportional to 81,915.18, 122,901.81 and 46,884.30 is: 70,343.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,915.18 : 122,901.81 = 46,884.30 : x
  2. Step 2: Convert to fraction form
    81,915.18/122,901.81 = 46,884.30/x
  3. Step 3: Cross multiply
    81,915.18x = 122,901.81 × 46,884.30
  4. Step 4: Simplify right side
    81,915.18x = 5,762,165,330.58
  5. Step 5: Solve for x
    x = 5,762,165,330.58/81,915.18
  6. Step 6: Final answer
    x = 70,343.07

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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.