Home / 81,580.08-122,376.02-34,147.45

Finding the Fourth Proportional to 81,580.08, 122,376.02 and 34,147.45

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Solution

The fourth proportional to 81,580.08, 122,376.02 and 34,147.45 is: 51,223.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,580.08 : 122,376.02 = 34,147.45 : x
  2. Step 2: Convert to fraction form
    81,580.08/122,376.02 = 34,147.45/x
  3. Step 3: Cross multiply
    81,580.08x = 122,376.02 × 34,147.45
  4. Step 4: Simplify right side
    81,580.08x = 4,178,828,318.02
  5. Step 5: Solve for x
    x = 4,178,828,318.02/81,580.08
  6. Step 6: Final answer
    x = 51,223.63

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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.