Home / 85,933.50-128,895.07-51,094.86

Finding the Fourth Proportional to 85,933.50, 128,895.07 and 51,094.86

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Solution

The fourth proportional to 85,933.50, 128,895.07 and 51,094.86 is: 76,639.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,933.50 : 128,895.07 = 51,094.86 : x
  2. Step 2: Convert to fraction form
    85,933.50/128,895.07 = 51,094.86/x
  3. Step 3: Cross multiply
    85,933.50x = 128,895.07 × 51,094.86
  4. Step 4: Simplify right side
    85,933.50x = 6,585,875,556.34
  5. Step 5: Solve for x
    x = 6,585,875,556.34/85,933.50
  6. Step 6: Final answer
    x = 76,639.21

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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.