Home / 85,556.37-128,349.15-26,381.01

Finding the Fourth Proportional to 85,556.37, 128,349.15 and 26,381.01

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Solution

The fourth proportional to 85,556.37, 128,349.15 and 26,381.01 is: 39,576.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,556.37 : 128,349.15 = 26,381.01 : x
  2. Step 2: Convert to fraction form
    85,556.37/128,349.15 = 26,381.01/x
  3. Step 3: Cross multiply
    85,556.37x = 128,349.15 × 26,381.01
  4. Step 4: Simplify right side
    85,556.37x = 3,385,980,209.64
  5. Step 5: Solve for x
    x = 3,385,980,209.64/85,556.37
  6. Step 6: Final answer
    x = 39,576.02

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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.