Home / 67,058.76-100,588.32-20,312.04

Finding the Fourth Proportional to 67,058.76, 100,588.32 and 20,312.04

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Solution

The fourth proportional to 67,058.76, 100,588.32 and 20,312.04 is: 30,468.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,058.76 : 100,588.32 = 20,312.04 : x
  2. Step 2: Convert to fraction form
    67,058.76/100,588.32 = 20,312.04/x
  3. Step 3: Cross multiply
    67,058.76x = 100,588.32 × 20,312.04
  4. Step 4: Simplify right side
    67,058.76x = 2,043,153,979.37
  5. Step 5: Solve for x
    x = 2,043,153,979.37/67,058.76
  6. Step 6: Final answer
    x = 30,468.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.