Home / 70,999.94-97,979.37-39,170.18

Finding the Fourth Proportional to 70,999.94, 97,979.37 and 39,170.18

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Solution

The fourth proportional to 70,999.94, 97,979.37 and 39,170.18 is: 54,054.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,999.94 : 97,979.37 = 39,170.18 : x
  2. Step 2: Convert to fraction form
    70,999.94/97,979.37 = 39,170.18/x
  3. Step 3: Cross multiply
    70,999.94x = 97,979.37 × 39,170.18
  4. Step 4: Simplify right side
    70,999.94x = 3,837,869,559.19
  5. Step 5: Solve for x
    x = 3,837,869,559.19/70,999.94
  6. Step 6: Final answer
    x = 54,054.55

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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.