Home / 70,012.89-96,615.38-39,799.49

Finding the Fourth Proportional to 70,012.89, 96,615.38 and 39,799.49

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Solution

The fourth proportional to 70,012.89, 96,615.38 and 39,799.49 is: 54,921.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,012.89 : 96,615.38 = 39,799.49 : x
  2. Step 2: Convert to fraction form
    70,012.89/96,615.38 = 39,799.49/x
  3. Step 3: Cross multiply
    70,012.89x = 96,615.38 × 39,799.49
  4. Step 4: Simplify right side
    70,012.89x = 3,845,242,466.58
  5. Step 5: Solve for x
    x = 3,845,242,466.58/70,012.89
  6. Step 6: Final answer
    x = 54,921.92

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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.