Home / 86,021.42-118,718.92-52,048.65

Finding the Fourth Proportional to 86,021.42, 118,718.92 and 52,048.65

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Solution

The fourth proportional to 86,021.42, 118,718.92 and 52,048.65 is: 71,832.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,021.42 : 118,718.92 = 52,048.65 : x
  2. Step 2: Convert to fraction form
    86,021.42/118,718.92 = 52,048.65/x
  3. Step 3: Cross multiply
    86,021.42x = 118,718.92 × 52,048.65
  4. Step 4: Simplify right side
    86,021.42x = 6,179,159,399.04
  5. Step 5: Solve for x
    x = 6,179,159,399.04/86,021.42
  6. Step 6: Final answer
    x = 71,832.80

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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.