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Finding the Fourth Proportional to 86,756.51, 119,719.01 and 47,992.02

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Solution

The fourth proportional to 86,756.51, 119,719.01 and 47,992.02 is: 66,226.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,756.51 : 119,719.01 = 47,992.02 : x
  2. Step 2: Convert to fraction form
    86,756.51/119,719.01 = 47,992.02/x
  3. Step 3: Cross multiply
    86,756.51x = 119,719.01 × 47,992.02
  4. Step 4: Simplify right side
    86,756.51x = 5,745,556,703.35
  5. Step 5: Solve for x
    x = 5,745,556,703.35/86,756.51
  6. Step 6: Final answer
    x = 66,226.23

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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.