Home / 70,760.41-97,649.36-38,928.62

Finding the Fourth Proportional to 70,760.41, 97,649.36 and 38,928.62

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Solution

The fourth proportional to 70,760.41, 97,649.36 and 38,928.62 is: 53,721.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,760.41 : 97,649.36 = 38,928.62 : x
  2. Step 2: Convert to fraction form
    70,760.41/97,649.36 = 38,928.62/x
  3. Step 3: Cross multiply
    70,760.41x = 97,649.36 × 38,928.62
  4. Step 4: Simplify right side
    70,760.41x = 3,801,354,828.68
  5. Step 5: Solve for x
    x = 3,801,354,828.68/70,760.41
  6. Step 6: Final answer
    x = 53,721.49

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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.