Home / 85,090.25-127,693.70-29,686.25

Finding the Fourth Proportional to 85,090.25, 127,693.70 and 29,686.25

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Solution

The fourth proportional to 85,090.25, 127,693.70 and 29,686.25 is: 44,549.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,090.25 : 127,693.70 = 29,686.25 : x
  2. Step 2: Convert to fraction form
    85,090.25/127,693.70 = 29,686.25/x
  3. Step 3: Cross multiply
    85,090.25x = 127,693.70 × 29,686.25
  4. Step 4: Simplify right side
    85,090.25x = 3,790,747,101.63
  5. Step 5: Solve for x
    x = 3,790,747,101.63/85,090.25
  6. Step 6: Final answer
    x = 44,549.72

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1.5x scale

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.