Home / 73,088.64-109,636.20-20,496.96

Finding the Fourth Proportional to 73,088.64, 109,636.20 and 20,496.96

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Solution

The fourth proportional to 73,088.64, 109,636.20 and 20,496.96 is: 30,746.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,088.64 : 109,636.20 = 20,496.96 : x
  2. Step 2: Convert to fraction form
    73,088.64/109,636.20 = 20,496.96/x
  3. Step 3: Cross multiply
    73,088.64x = 109,636.20 × 20,496.96
  4. Step 4: Simplify right side
    73,088.64x = 2,247,208,805.95
  5. Step 5: Solve for x
    x = 2,247,208,805.95/73,088.64
  6. Step 6: Final answer
    x = 30,746.35

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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.