Home / 74,339.49-102,563.37-42,485.70

Finding the Fourth Proportional to 74,339.49, 102,563.37 and 42,485.70

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Solution

The fourth proportional to 74,339.49, 102,563.37 and 42,485.70 is: 58,615.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,339.49 : 102,563.37 = 42,485.70 : x
  2. Step 2: Convert to fraction form
    74,339.49/102,563.37 = 42,485.70/x
  3. Step 3: Cross multiply
    74,339.49x = 102,563.37 × 42,485.70
  4. Step 4: Simplify right side
    74,339.49x = 4,357,476,568.81
  5. Step 5: Solve for x
    x = 4,357,476,568.81/74,339.49
  6. Step 6: Final answer
    x = 58,615.91

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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.