Home / 86,751.03-130,126.23-30,577.60

Finding the Fourth Proportional to 86,751.03, 130,126.23 and 30,577.60

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Solution

The fourth proportional to 86,751.03, 130,126.23 and 30,577.60 is: 45,866.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,751.03 : 130,126.23 = 30,577.60 : x
  2. Step 2: Convert to fraction form
    86,751.03/130,126.23 = 30,577.60/x
  3. Step 3: Cross multiply
    86,751.03x = 130,126.23 × 30,577.60
  4. Step 4: Simplify right side
    86,751.03x = 3,978,947,973.11
  5. Step 5: Solve for x
    x = 3,978,947,973.11/86,751.03
  6. Step 6: Final answer
    x = 45,866.29

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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.