Home / 70,620.48-97,456.91-38,790.09

Finding the Fourth Proportional to 70,620.48, 97,456.91 and 38,790.09

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Solution

The fourth proportional to 70,620.48, 97,456.91 and 38,790.09 is: 53,530.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,620.48 : 97,456.91 = 38,790.09 : x
  2. Step 2: Convert to fraction form
    70,620.48/97,456.91 = 38,790.09/x
  3. Step 3: Cross multiply
    70,620.48x = 97,456.91 × 38,790.09
  4. Step 4: Simplify right side
    70,620.48x = 3,780,362,116.07
  5. Step 5: Solve for x
    x = 3,780,362,116.07/70,620.48
  6. Step 6: Final answer
    x = 53,530.68

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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.