Home / 66,738.18-92,119.19-38,462.70

Finding the Fourth Proportional to 66,738.18, 92,119.19 and 38,462.70

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Solution

The fourth proportional to 66,738.18, 92,119.19 and 38,462.70 is: 53,090.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,738.18 : 92,119.19 = 38,462.70 : x
  2. Step 2: Convert to fraction form
    66,738.18/92,119.19 = 38,462.70/x
  3. Step 3: Cross multiply
    66,738.18x = 92,119.19 × 38,462.70
  4. Step 4: Simplify right side
    66,738.18x = 3,543,152,769.21
  5. Step 5: Solve for x
    x = 3,543,152,769.21/66,738.18
  6. Step 6: Final answer
    x = 53,090.34

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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.