Home / 74,427.20-102,710.03-40,435.68

Finding the Fourth Proportional to 74,427.20, 102,710.03 and 40,435.68

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Solution

The fourth proportional to 74,427.20, 102,710.03 and 40,435.68 is: 55,801.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,427.20 : 102,710.03 = 40,435.68 : x
  2. Step 2: Convert to fraction form
    74,427.20/102,710.03 = 40,435.68/x
  3. Step 3: Cross multiply
    74,427.20x = 102,710.03 × 40,435.68
  4. Step 4: Simplify right side
    74,427.20x = 4,153,149,703.69
  5. Step 5: Solve for x
    x = 4,153,149,703.69/74,427.20
  6. Step 6: Final answer
    x = 55,801.50

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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.