Home / 85,556.86-128,368.09-35,623.55

Finding the Fourth Proportional to 85,556.86, 128,368.09 and 35,623.55

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Solution

The fourth proportional to 85,556.86, 128,368.09 and 35,623.55 is: 53,448.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,556.86 : 128,368.09 = 35,623.55 : x
  2. Step 2: Convert to fraction form
    85,556.86/128,368.09 = 35,623.55/x
  3. Step 3: Cross multiply
    85,556.86x = 128,368.09 × 35,623.55
  4. Step 4: Simplify right side
    85,556.86x = 4,572,926,715.90
  5. Step 5: Solve for x
    x = 4,572,926,715.90/85,556.86
  6. Step 6: Final answer
    x = 53,448.98

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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.