Home / 85,565.21-128,293.13-41,103.50

Finding the Fourth Proportional to 85,565.21, 128,293.13 and 41,103.50

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Solution

The fourth proportional to 85,565.21, 128,293.13 and 41,103.50 is: 61,628.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,565.21 : 128,293.13 = 41,103.50 : x
  2. Step 2: Convert to fraction form
    85,565.21/128,293.13 = 41,103.50/x
  3. Step 3: Cross multiply
    85,565.21x = 128,293.13 × 41,103.50
  4. Step 4: Simplify right side
    85,565.21x = 5,273,296,130.25
  5. Step 5: Solve for x
    x = 5,273,296,130.25/85,565.21
  6. Step 6: Final answer
    x = 61,628.98

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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.