Home / 70,920.26-97,869.45-39,089.20

Finding the Fourth Proportional to 70,920.26, 97,869.45 and 39,089.20

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Solution

The fourth proportional to 70,920.26, 97,869.45 and 39,089.20 is: 53,942.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,920.26 : 97,869.45 = 39,089.20 : x
  2. Step 2: Convert to fraction form
    70,920.26/97,869.45 = 39,089.20/x
  3. Step 3: Cross multiply
    70,920.26x = 97,869.45 × 39,089.20
  4. Step 4: Simplify right side
    70,920.26x = 3,825,638,504.94
  5. Step 5: Solve for x
    x = 3,825,638,504.94/70,920.26
  6. Step 6: Final answer
    x = 53,942.82

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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.