Home / 70,736.06-97,615.25-38,904.28

Finding the Fourth Proportional to 70,736.06, 97,615.25 and 38,904.28

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Solution

The fourth proportional to 70,736.06, 97,615.25 and 38,904.28 is: 53,687.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,736.06 : 97,615.25 = 38,904.28 : x
  2. Step 2: Convert to fraction form
    70,736.06/97,615.25 = 38,904.28/x
  3. Step 3: Cross multiply
    70,736.06x = 97,615.25 × 38,904.28
  4. Step 4: Simplify right side
    70,736.06x = 3,797,650,530.19
  5. Step 5: Solve for x
    x = 3,797,650,530.19/70,736.06
  6. Step 6: Final answer
    x = 53,687.62

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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.