Home / 70,749.87-97,640.69-38,924.57

Finding the Fourth Proportional to 70,749.87, 97,640.69 and 38,924.57

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Solution

The fourth proportional to 70,749.87, 97,640.69 and 38,924.57 is: 53,719.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,749.87 : 97,640.69 = 38,924.57 : x
  2. Step 2: Convert to fraction form
    70,749.87/97,640.69 = 38,924.57/x
  3. Step 3: Cross multiply
    70,749.87x = 97,640.69 × 38,924.57
  4. Step 4: Simplify right side
    70,749.87x = 3,800,621,189.93
  5. Step 5: Solve for x
    x = 3,800,621,189.93/70,749.87
  6. Step 6: Final answer
    x = 53,719.13

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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.