Home / 70,291.35-96,999.65-40,086.40

Finding the Fourth Proportional to 70,291.35, 96,999.65 and 40,086.40

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Solution

The fourth proportional to 70,291.35, 96,999.65 and 40,086.40 is: 55,317.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,291.35 : 96,999.65 = 40,086.40 : x
  2. Step 2: Convert to fraction form
    70,291.35/96,999.65 = 40,086.40/x
  3. Step 3: Cross multiply
    70,291.35x = 96,999.65 × 40,086.40
  4. Step 4: Simplify right side
    70,291.35x = 3,888,366,769.76
  5. Step 5: Solve for x
    x = 3,888,366,769.76/70,291.35
  6. Step 6: Final answer
    x = 55,317.86

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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.