Home / 61,688.18-85,126.46-36,191

Finding the Fourth Proportional to 61,688.18, 85,126.46 and 36,191

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Solution

The fourth proportional to 61,688.18, 85,126.46 and 36,191 is: 49,941.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,688.18 : 85,126.46 = 36,191 : x
  2. Step 2: Convert to fraction form
    61,688.18/85,126.46 = 36,191/x
  3. Step 3: Cross multiply
    61,688.18x = 85,126.46 × 36,191
  4. Step 4: Simplify right side
    61,688.18x = 3,080,811,713.86
  5. Step 5: Solve for x
    x = 3,080,811,713.86/61,688.18
  6. Step 6: Final answer
    x = 49,941.69

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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.