Home / 73,137.08-109,705.62-20,547.02

Finding the Fourth Proportional to 73,137.08, 109,705.62 and 20,547.02

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Solution

The fourth proportional to 73,137.08, 109,705.62 and 20,547.02 is: 30,820.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,137.08 : 109,705.62 = 20,547.02 : x
  2. Step 2: Convert to fraction form
    73,137.08/109,705.62 = 20,547.02/x
  3. Step 3: Cross multiply
    73,137.08x = 109,705.62 × 20,547.02
  4. Step 4: Simplify right side
    73,137.08x = 2,254,123,568.25
  5. Step 5: Solve for x
    x = 2,254,123,568.25/73,137.08
  6. Step 6: Final answer
    x = 30,820.53

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1.5x scale

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.