Home / 86,928.08-130,385.64-27,770

Finding the Fourth Proportional to 86,928.08, 130,385.64 and 27,770

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Solution

The fourth proportional to 86,928.08, 130,385.64 and 27,770 is: 41,652.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,928.08 : 130,385.64 = 27,770 : x
  2. Step 2: Convert to fraction form
    86,928.08/130,385.64 = 27,770/x
  3. Step 3: Cross multiply
    86,928.08x = 130,385.64 × 27,770
  4. Step 4: Simplify right side
    86,928.08x = 3,620,809,222.80
  5. Step 5: Solve for x
    x = 3,620,809,222.80/86,928.08
  6. Step 6: Final answer
    x = 41,652.93

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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.