Home / 60,173.28-90,260.10-20,729.88

Finding the Fourth Proportional to 60,173.28, 90,260.10 and 20,729.88

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Solution

The fourth proportional to 60,173.28, 90,260.10 and 20,729.88 is: 31,094.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,173.28 : 90,260.10 = 20,729.88 : x
  2. Step 2: Convert to fraction form
    60,173.28/90,260.10 = 20,729.88/x
  3. Step 3: Cross multiply
    60,173.28x = 90,260.10 × 20,729.88
  4. Step 4: Simplify right side
    60,173.28x = 1,871,081,041.79
  5. Step 5: Solve for x
    x = 1,871,081,041.79/60,173.28
  6. Step 6: Final answer
    x = 31,094.88

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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.