Home / 70,986.12-97,959.33-39,157.98

Finding the Fourth Proportional to 70,986.12, 97,959.33 and 39,157.98

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Solution

The fourth proportional to 70,986.12, 97,959.33 and 39,157.98 is: 54,037.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,986.12 : 97,959.33 = 39,157.98 : x
  2. Step 2: Convert to fraction form
    70,986.12/97,959.33 = 39,157.98/x
  3. Step 3: Cross multiply
    70,986.12x = 97,959.33 × 39,157.98
  4. Step 4: Simplify right side
    70,986.12x = 3,835,889,484.95
  5. Step 5: Solve for x
    x = 3,835,889,484.95/70,986.12
  6. Step 6: Final answer
    x = 54,037.18

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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.