Home / 74,541.50-102,869.14-40,551.90

Finding the Fourth Proportional to 74,541.50, 102,869.14 and 40,551.90

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Solution

The fourth proportional to 74,541.50, 102,869.14 and 40,551.90 is: 55,962.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,541.50 : 102,869.14 = 40,551.90 : x
  2. Step 2: Convert to fraction form
    74,541.50/102,869.14 = 40,551.90/x
  3. Step 3: Cross multiply
    74,541.50x = 102,869.14 × 40,551.90
  4. Step 4: Simplify right side
    74,541.50x = 4,171,539,078.37
  5. Step 5: Solve for x
    x = 4,171,539,078.37/74,541.50
  6. Step 6: Final answer
    x = 55,962.64

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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.