Home / 71,222.60-98,281.06-39,383.52

Finding the Fourth Proportional to 71,222.60, 98,281.06 and 39,383.52

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Solution

The fourth proportional to 71,222.60, 98,281.06 and 39,383.52 is: 54,345.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,222.60 : 98,281.06 = 39,383.52 : x
  2. Step 2: Convert to fraction form
    71,222.60/98,281.06 = 39,383.52/x
  3. Step 3: Cross multiply
    71,222.60x = 98,281.06 × 39,383.52
  4. Step 4: Simplify right side
    71,222.60x = 3,870,653,993.67
  5. Step 5: Solve for x
    x = 3,870,653,993.67/71,222.60
  6. Step 6: Final answer
    x = 54,345.87

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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.