Home / 70,398.36-97,150.58-40,187.80

Finding the Fourth Proportional to 70,398.36, 97,150.58 and 40,187.80

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Solution

The fourth proportional to 70,398.36, 97,150.58 and 40,187.80 is: 55,459.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,398.36 : 97,150.58 = 40,187.80 : x
  2. Step 2: Convert to fraction form
    70,398.36/97,150.58 = 40,187.80/x
  3. Step 3: Cross multiply
    70,398.36x = 97,150.58 × 40,187.80
  4. Step 4: Simplify right side
    70,398.36x = 3,904,268,078.92
  5. Step 5: Solve for x
    x = 3,904,268,078.92/70,398.36
  6. Step 6: Final answer
    x = 55,459.65

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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.