Home / 70,988.09-97,764.21-69,438.04

Finding the Fourth Proportional to 70,988.09, 97,764.21 and 69,438.04

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Solution

The fourth proportional to 70,988.09, 97,764.21 and 69,438.04 is: 95,629.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,988.09 : 97,764.21 = 69,438.04 : x
  2. Step 2: Convert to fraction form
    70,988.09/97,764.21 = 69,438.04/x
  3. Step 3: Cross multiply
    70,988.09x = 97,764.21 × 69,438.04
  4. Step 4: Simplify right side
    70,988.09x = 6,788,554,880.14
  5. Step 5: Solve for x
    x = 6,788,554,880.14/70,988.09
  6. Step 6: Final answer
    x = 95,629.50

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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.