Home / 86,809.38-130,224.48-30,637.88

Finding the Fourth Proportional to 86,809.38, 130,224.48 and 30,637.88

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Solution

The fourth proportional to 86,809.38, 130,224.48 and 30,637.88 is: 45,960.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,809.38 : 130,224.48 = 30,637.88 : x
  2. Step 2: Convert to fraction form
    86,809.38/130,224.48 = 30,637.88/x
  3. Step 3: Cross multiply
    86,809.38x = 130,224.48 × 30,637.88
  4. Step 4: Simplify right side
    86,809.38x = 3,989,801,991.30
  5. Step 5: Solve for x
    x = 3,989,801,991.30/86,809.38
  6. Step 6: Final answer
    x = 45,960.49

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1.5x scale

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.