Home / 85,084.10-127,670.08-40,701.86

Finding the Fourth Proportional to 85,084.10, 127,670.08 and 40,701.86

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Solution

The fourth proportional to 85,084.10, 127,670.08 and 40,701.86 is: 61,073.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,084.10 : 127,670.08 = 40,701.86 : x
  2. Step 2: Convert to fraction form
    85,084.10/127,670.08 = 40,701.86/x
  3. Step 3: Cross multiply
    85,084.10x = 127,670.08 × 40,701.86
  4. Step 4: Simplify right side
    85,084.10x = 5,196,409,722.35
  5. Step 5: Solve for x
    x = 5,196,409,722.35/85,084.10
  6. Step 6: Final answer
    x = 61,073.80

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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.