Home / 65,415.12-90,270.36-37,119.12

Finding the Fourth Proportional to 65,415.12, 90,270.36 and 37,119.12

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Solution

The fourth proportional to 65,415.12, 90,270.36 and 37,119.12 is: 51,222.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,415.12 : 90,270.36 = 37,119.12 : x
  2. Step 2: Convert to fraction form
    65,415.12/90,270.36 = 37,119.12/x
  3. Step 3: Cross multiply
    65,415.12x = 90,270.36 × 37,119.12
  4. Step 4: Simplify right side
    65,415.12x = 3,350,756,325.28
  5. Step 5: Solve for x
    x = 3,350,756,325.28/65,415.12
  6. Step 6: Final answer
    x = 51,222.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.