Home / 73,085.10-100,857.75-39,551.10

Finding the Fourth Proportional to 73,085.10, 100,857.75 and 39,551.10

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Solution

The fourth proportional to 73,085.10, 100,857.75 and 39,551.10 is: 54,580.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,085.10 : 100,857.75 = 39,551.10 : x
  2. Step 2: Convert to fraction form
    73,085.10/100,857.75 = 39,551.10/x
  3. Step 3: Cross multiply
    73,085.10x = 100,857.75 × 39,551.10
  4. Step 4: Simplify right side
    73,085.10x = 3,989,034,956.03
  5. Step 5: Solve for x
    x = 3,989,034,956.03/73,085.10
  6. Step 6: Final answer
    x = 54,580.69

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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.