Home / 74,624.64-102,984.36-40,635.36

Finding the Fourth Proportional to 74,624.64, 102,984.36 and 40,635.36

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Solution

The fourth proportional to 74,624.64, 102,984.36 and 40,635.36 is: 56,078.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,624.64 : 102,984.36 = 40,635.36 : x
  2. Step 2: Convert to fraction form
    74,624.64/102,984.36 = 40,635.36/x
  3. Step 3: Cross multiply
    74,624.64x = 102,984.36 × 40,635.36
  4. Step 4: Simplify right side
    74,624.64x = 4,184,806,542.97
  5. Step 5: Solve for x
    x = 4,184,806,542.97/74,624.64
  6. Step 6: Final answer
    x = 56,078.08

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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.