Home / 70,919.63-97,869.30-39,087.80

Finding the Fourth Proportional to 70,919.63, 97,869.30 and 39,087.80

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Solution

The fourth proportional to 70,919.63, 97,869.30 and 39,087.80 is: 53,941.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,919.63 : 97,869.30 = 39,087.80 : x
  2. Step 2: Convert to fraction form
    70,919.63/97,869.30 = 39,087.80/x
  3. Step 3: Cross multiply
    70,919.63x = 97,869.30 × 39,087.80
  4. Step 4: Simplify right side
    70,919.63x = 3,825,495,624.54
  5. Step 5: Solve for x
    x = 3,825,495,624.54/70,919.63
  6. Step 6: Final answer
    x = 53,941.28

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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.