Home / 86,975.32-130,458.88-30,814.52

Finding the Fourth Proportional to 86,975.32, 130,458.88 and 30,814.52

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Solution

The fourth proportional to 86,975.32, 130,458.88 and 30,814.52 is: 46,220.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,975.32 : 130,458.88 = 30,814.52 : x
  2. Step 2: Convert to fraction form
    86,975.32/130,458.88 = 30,814.52/x
  3. Step 3: Cross multiply
    86,975.32x = 130,458.88 × 30,814.52
  4. Step 4: Simplify right side
    86,975.32x = 4,020,027,766.94
  5. Step 5: Solve for x
    x = 4,020,027,766.94/86,975.32
  6. Step 6: Final answer
    x = 46,220.33

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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.