Home / 81,724.95-122,538.02-53,283.02

Finding the Fourth Proportional to 81,724.95, 122,538.02 and 53,283.02

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Solution

The fourth proportional to 81,724.95, 122,538.02 and 53,283.02 is: 79,892.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,724.95 : 122,538.02 = 53,283.02 : x
  2. Step 2: Convert to fraction form
    81,724.95/122,538.02 = 53,283.02/x
  3. Step 3: Cross multiply
    81,724.95x = 122,538.02 × 53,283.02
  4. Step 4: Simplify right side
    81,724.95x = 6,529,194,891.32
  5. Step 5: Solve for x
    x = 6,529,194,891.32/81,724.95
  6. Step 6: Final answer
    x = 79,892.31

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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.