Home / 85,518.08-128,277.11-23,188.58

Finding the Fourth Proportional to 85,518.08, 128,277.11 and 23,188.58

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Solution

The fourth proportional to 85,518.08, 128,277.11 and 23,188.58 is: 34,782.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,518.08 : 128,277.11 = 23,188.58 : x
  2. Step 2: Convert to fraction form
    85,518.08/128,277.11 = 23,188.58/x
  3. Step 3: Cross multiply
    85,518.08x = 128,277.11 × 23,188.58
  4. Step 4: Simplify right side
    85,518.08x = 2,974,563,443.99
  5. Step 5: Solve for x
    x = 2,974,563,443.99/85,518.08
  6. Step 6: Final answer
    x = 34,782.86

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Similar ratio
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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.