Home / 70,747.39-97,638.55-40,536.72

Finding the Fourth Proportional to 70,747.39, 97,638.55 and 40,536.72

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Solution

The fourth proportional to 70,747.39, 97,638.55 and 40,536.72 is: 55,944.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,747.39 : 97,638.55 = 40,536.72 : x
  2. Step 2: Convert to fraction form
    70,747.39/97,638.55 = 40,536.72/x
  3. Step 3: Cross multiply
    70,747.39x = 97,638.55 × 40,536.72
  4. Step 4: Simplify right side
    70,747.39x = 3,957,945,871.68
  5. Step 5: Solve for x
    x = 3,957,945,871.68/70,747.39
  6. Step 6: Final answer
    x = 55,944.77

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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.