Home / 86,945.40-130,381.65-27,765.18

Finding the Fourth Proportional to 86,945.40, 130,381.65 and 27,765.18

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Solution

The fourth proportional to 86,945.40, 130,381.65 and 27,765.18 is: 41,636.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,945.40 : 130,381.65 = 27,765.18 : x
  2. Step 2: Convert to fraction form
    86,945.40/130,381.65 = 27,765.18/x
  3. Step 3: Cross multiply
    86,945.40x = 130,381.65 × 27,765.18
  4. Step 4: Simplify right side
    86,945.40x = 3,620,069,980.95
  5. Step 5: Solve for x
    x = 3,620,069,980.95/86,945.40
  6. Step 6: Final answer
    x = 41,636.13

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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.