Home / 85,173.72-127,668.84-40,705.93

Finding the Fourth Proportional to 85,173.72, 127,668.84 and 40,705.93

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Solution

The fourth proportional to 85,173.72, 127,668.84 and 40,705.93 is: 61,015.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,173.72 : 127,668.84 = 40,705.93 : x
  2. Step 2: Convert to fraction form
    85,173.72/127,668.84 = 40,705.93/x
  3. Step 3: Cross multiply
    85,173.72x = 127,668.84 × 40,705.93
  4. Step 4: Simplify right side
    85,173.72x = 5,196,878,864.22
  5. Step 5: Solve for x
    x = 5,196,878,864.22/85,173.72
  6. Step 6: Final answer
    x = 61,015.05

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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.