Home / 70,968.15-97,933.86-39,135.15

Finding the Fourth Proportional to 70,968.15, 97,933.86 and 39,135.15

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Solution

The fourth proportional to 70,968.15, 97,933.86 and 39,135.15 is: 54,005.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,968.15 : 97,933.86 = 39,135.15 : x
  2. Step 2: Convert to fraction form
    70,968.15/97,933.86 = 39,135.15/x
  3. Step 3: Cross multiply
    70,968.15x = 97,933.86 × 39,135.15
  4. Step 4: Simplify right side
    70,968.15x = 3,832,656,301.18
  5. Step 5: Solve for x
    x = 3,832,656,301.18/70,968.15
  6. Step 6: Final answer
    x = 54,005.30

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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.