Home / 85,999.08-128,994.07-26,827.98

Finding the Fourth Proportional to 85,999.08, 128,994.07 and 26,827.98

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Solution

The fourth proportional to 85,999.08, 128,994.07 and 26,827.98 is: 40,240.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,999.08 : 128,994.07 = 26,827.98 : x
  2. Step 2: Convert to fraction form
    85,999.08/128,994.07 = 26,827.98/x
  3. Step 3: Cross multiply
    85,999.08x = 128,994.07 × 26,827.98
  4. Step 4: Simplify right side
    85,999.08x = 3,460,650,330.08
  5. Step 5: Solve for x
    x = 3,460,650,330.08/85,999.08
  6. Step 6: Final answer
    x = 40,240.55

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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.