Home / 70,036.32-96,646.20-39,817.40

Finding the Fourth Proportional to 70,036.32, 96,646.20 and 39,817.40

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Solution

The fourth proportional to 70,036.32, 96,646.20 and 39,817.40 is: 54,945.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,036.32 : 96,646.20 = 39,817.40 : x
  2. Step 2: Convert to fraction form
    70,036.32/96,646.20 = 39,817.40/x
  3. Step 3: Cross multiply
    70,036.32x = 96,646.20 × 39,817.40
  4. Step 4: Simplify right side
    70,036.32x = 3,848,200,403.88
  5. Step 5: Solve for x
    x = 3,848,200,403.88/70,036.32
  6. Step 6: Final answer
    x = 54,945.78

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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.