Home / 84,173.08-126,254.67-31,578.16

Finding the Fourth Proportional to 84,173.08, 126,254.67 and 31,578.16

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Solution

The fourth proportional to 84,173.08, 126,254.67 and 31,578.16 is: 47,365.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,173.08 : 126,254.67 = 31,578.16 : x
  2. Step 2: Convert to fraction form
    84,173.08/126,254.67 = 31,578.16/x
  3. Step 3: Cross multiply
    84,173.08x = 126,254.67 × 31,578.16
  4. Step 4: Simplify right side
    84,173.08x = 3,986,890,170.01
  5. Step 5: Solve for x
    x = 3,986,890,170.01/84,173.08
  6. Step 6: Final answer
    x = 47,365.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.