Home / 76,767.09-115,150.63-29,987.16

Finding the Fourth Proportional to 76,767.09, 115,150.63 and 29,987.16

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Solution

The fourth proportional to 76,767.09, 115,150.63 and 29,987.16 is: 44,980.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,767.09 : 115,150.63 = 29,987.16 : x
  2. Step 2: Convert to fraction form
    76,767.09/115,150.63 = 29,987.16/x
  3. Step 3: Cross multiply
    76,767.09x = 115,150.63 × 29,987.16
  4. Step 4: Simplify right side
    76,767.09x = 3,453,040,365.91
  5. Step 5: Solve for x
    x = 3,453,040,365.91/76,767.09
  6. Step 6: Final answer
    x = 44,980.74

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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.