Home / 85,208.10-127,670.88-51,827.18

Finding the Fourth Proportional to 85,208.10, 127,670.88 and 51,827.18

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Solution

The fourth proportional to 85,208.10, 127,670.88 and 51,827.18 is: 77,654.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,208.10 : 127,670.88 = 51,827.18 : x
  2. Step 2: Convert to fraction form
    85,208.10/127,670.88 = 51,827.18/x
  3. Step 3: Cross multiply
    85,208.10x = 127,670.88 × 51,827.18
  4. Step 4: Simplify right side
    85,208.10x = 6,616,821,678.52
  5. Step 5: Solve for x
    x = 6,616,821,678.52/85,208.10
  6. Step 6: Final answer
    x = 77,654.84

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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.