Home / 70,919.43-97,869.50-39,089.55

Finding the Fourth Proportional to 70,919.43, 97,869.50 and 39,089.55

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Solution

The fourth proportional to 70,919.43, 97,869.50 and 39,089.55 is: 53,943.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,919.43 : 97,869.50 = 39,089.55 : x
  2. Step 2: Convert to fraction form
    70,919.43/97,869.50 = 39,089.55/x
  3. Step 3: Cross multiply
    70,919.43x = 97,869.50 × 39,089.55
  4. Step 4: Simplify right side
    70,919.43x = 3,825,674,518.28
  5. Step 5: Solve for x
    x = 3,825,674,518.28/70,919.43
  6. Step 6: Final answer
    x = 53,943.95

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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.