Home / 86,203.37-129,263.41-30,042.16

Finding the Fourth Proportional to 86,203.37, 129,263.41 and 30,042.16

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Solution

The fourth proportional to 86,203.37, 129,263.41 and 30,042.16 is: 45,048.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,203.37 : 129,263.41 = 30,042.16 : x
  2. Step 2: Convert to fraction form
    86,203.37/129,263.41 = 30,042.16/x
  3. Step 3: Cross multiply
    86,203.37x = 129,263.41 × 30,042.16
  4. Step 4: Simplify right side
    86,203.37x = 3,883,351,647.10
  5. Step 5: Solve for x
    x = 3,883,351,647.10/86,203.37
  6. Step 6: Final answer
    x = 45,048.72

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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.