Home / 74,203.20-102,406.92-42,382.32

Finding the Fourth Proportional to 74,203.20, 102,406.92 and 42,382.32

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Solution

The fourth proportional to 74,203.20, 102,406.92 and 42,382.32 is: 58,491.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,203.20 : 102,406.92 = 42,382.32 : x
  2. Step 2: Convert to fraction form
    74,203.20/102,406.92 = 42,382.32/x
  3. Step 3: Cross multiply
    74,203.20x = 102,406.92 × 42,382.32
  4. Step 4: Simplify right side
    74,203.20x = 4,340,242,853.65
  5. Step 5: Solve for x
    x = 4,340,242,853.65/74,203.20
  6. Step 6: Final answer
    x = 58,491.32

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1.5x scale

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.