Home / 70,741.05-97,621.88-38,910.39

Finding the Fourth Proportional to 70,741.05, 97,621.88 and 38,910.39

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Solution

The fourth proportional to 70,741.05, 97,621.88 and 38,910.39 is: 53,695.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,741.05 : 97,621.88 = 38,910.39 : x
  2. Step 2: Convert to fraction form
    70,741.05/97,621.88 = 38,910.39/x
  3. Step 3: Cross multiply
    70,741.05x = 97,621.88 × 38,910.39
  4. Step 4: Simplify right side
    70,741.05x = 3,798,505,228.78
  5. Step 5: Solve for x
    x = 3,798,505,228.78/70,741.05
  6. Step 6: Final answer
    x = 53,695.91

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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.