Home / 85,578.51-118,089.26-47,331.98

Finding the Fourth Proportional to 85,578.51, 118,089.26 and 47,331.98

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Solution

The fourth proportional to 85,578.51, 118,089.26 and 47,331.98 is: 65,313.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,578.51 : 118,089.26 = 47,331.98 : x
  2. Step 2: Convert to fraction form
    85,578.51/118,089.26 = 47,331.98/x
  3. Step 3: Cross multiply
    85,578.51x = 118,089.26 × 47,331.98
  4. Step 4: Simplify right side
    85,578.51x = 5,589,397,665.43
  5. Step 5: Solve for x
    x = 5,589,397,665.43/85,578.51
  6. Step 6: Final answer
    x = 65,313.10

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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.