Home / 70,736.56-97,615.94-38,904.78

Finding the Fourth Proportional to 70,736.56, 97,615.94 and 38,904.78

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Solution

The fourth proportional to 70,736.56, 97,615.94 and 38,904.78 is: 53,688.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,736.56 : 97,615.94 = 38,904.78 : x
  2. Step 2: Convert to fraction form
    70,736.56/97,615.94 = 38,904.78/x
  3. Step 3: Cross multiply
    70,736.56x = 97,615.94 × 38,904.78
  4. Step 4: Simplify right side
    70,736.56x = 3,797,726,182.11
  5. Step 5: Solve for x
    x = 3,797,726,182.11/70,736.56
  6. Step 6: Final answer
    x = 53,688.31

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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.