Home / 91,147.37-136,719.90-31,175.24

Finding the Fourth Proportional to 91,147.37, 136,719.90 and 31,175.24

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Solution

The fourth proportional to 91,147.37, 136,719.90 and 31,175.24 is: 46,762.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,147.37 : 136,719.90 = 31,175.24 : x
  2. Step 2: Convert to fraction form
    91,147.37/136,719.90 = 31,175.24/x
  3. Step 3: Cross multiply
    91,147.37x = 136,719.90 × 31,175.24
  4. Step 4: Simplify right side
    91,147.37x = 4,262,275,011.68
  5. Step 5: Solve for x
    x = 4,262,275,011.68/91,147.37
  6. Step 6: Final answer
    x = 46,762.46

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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.