Home / 74,610.73-102,970.25-55,715.05

Finding the Fourth Proportional to 74,610.73, 102,970.25 and 55,715.05

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Solution

The fourth proportional to 74,610.73, 102,970.25 and 55,715.05 is: 76,892.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,610.73 : 102,970.25 = 55,715.05 : x
  2. Step 2: Convert to fraction form
    74,610.73/102,970.25 = 55,715.05/x
  3. Step 3: Cross multiply
    74,610.73x = 102,970.25 × 55,715.05
  4. Step 4: Simplify right side
    74,610.73x = 5,736,992,627.26
  5. Step 5: Solve for x
    x = 5,736,992,627.26/74,610.73
  6. Step 6: Final answer
    x = 76,892.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.