Home / 86,421.93-129,621.96-33,868.32

Finding the Fourth Proportional to 86,421.93, 129,621.96 and 33,868.32

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Solution

The fourth proportional to 86,421.93, 129,621.96 and 33,868.32 is: 50,798.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,421.93 : 129,621.96 = 33,868.32 : x
  2. Step 2: Convert to fraction form
    86,421.93/129,621.96 = 33,868.32/x
  3. Step 3: Cross multiply
    86,421.93x = 129,621.96 × 33,868.32
  4. Step 4: Simplify right side
    86,421.93x = 4,390,078,020.31
  5. Step 5: Solve for x
    x = 4,390,078,020.31/86,421.93
  6. Step 6: Final answer
    x = 50,798.19

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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.