Home / 85,824.38-128,466.84-59,449.16

Finding the Fourth Proportional to 85,824.38, 128,466.84 and 59,449.16

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Solution

The fourth proportional to 85,824.38, 128,466.84 and 59,449.16 is: 88,986.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,824.38 : 128,466.84 = 59,449.16 : x
  2. Step 2: Convert to fraction form
    85,824.38/128,466.84 = 59,449.16/x
  3. Step 3: Cross multiply
    85,824.38x = 128,466.84 × 59,449.16
  4. Step 4: Simplify right side
    85,824.38x = 7,637,245,725.85
  5. Step 5: Solve for x
    x = 7,637,245,725.85/85,824.38
  6. Step 6: Final answer
    x = 88,986.90

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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.