Home / 70,727.58-97,609.86-38,902.68

Finding the Fourth Proportional to 70,727.58, 97,609.86 and 38,902.68

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Solution

The fourth proportional to 70,727.58, 97,609.86 and 38,902.68 is: 53,688.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,727.58 : 97,609.86 = 38,902.68 : x
  2. Step 2: Convert to fraction form
    70,727.58/97,609.86 = 38,902.68/x
  3. Step 3: Cross multiply
    70,727.58x = 97,609.86 × 38,902.68
  4. Step 4: Simplify right side
    70,727.58x = 3,797,285,148.42
  5. Step 5: Solve for x
    x = 3,797,285,148.42/70,727.58
  6. Step 6: Final answer
    x = 53,688.89

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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.