Home / 74,426.54-102,709.12-40,435.02

Finding the Fourth Proportional to 74,426.54, 102,709.12 and 40,435.02

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Solution

The fourth proportional to 74,426.54, 102,709.12 and 40,435.02 is: 55,800.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,426.54 : 102,709.12 = 40,435.02 : x
  2. Step 2: Convert to fraction form
    74,426.54/102,709.12 = 40,435.02/x
  3. Step 3: Cross multiply
    74,426.54x = 102,709.12 × 40,435.02
  4. Step 4: Simplify right side
    74,426.54x = 4,153,045,296.11
  5. Step 5: Solve for x
    x = 4,153,045,296.11/74,426.54
  6. Step 6: Final answer
    x = 55,800.60

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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.