Home / 85,090.04-127,631.90-34,487.32

Finding the Fourth Proportional to 85,090.04, 127,631.90 and 34,487.32

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Solution

The fourth proportional to 85,090.04, 127,631.90 and 34,487.32 is: 51,729.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,090.04 : 127,631.90 = 34,487.32 : x
  2. Step 2: Convert to fraction form
    85,090.04/127,631.90 = 34,487.32/x
  3. Step 3: Cross multiply
    85,090.04x = 127,631.90 × 34,487.32
  4. Step 4: Simplify right side
    85,090.04x = 4,401,682,177.51
  5. Step 5: Solve for x
    x = 4,401,682,177.51/85,090.04
  6. Step 6: Final answer
    x = 51,729.70

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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.