Home / 85,830.75-118,453.41-47,594.10

Finding the Fourth Proportional to 85,830.75, 118,453.41 and 47,594.10

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Solution

The fourth proportional to 85,830.75, 118,453.41 and 47,594.10 is: 65,683.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,830.75 : 118,453.41 = 47,594.10 : x
  2. Step 2: Convert to fraction form
    85,830.75/118,453.41 = 47,594.10/x
  3. Step 3: Cross multiply
    85,830.75x = 118,453.41 × 47,594.10
  4. Step 4: Simplify right side
    85,830.75x = 5,637,683,440.88
  5. Step 5: Solve for x
    x = 5,637,683,440.88/85,830.75
  6. Step 6: Final answer
    x = 65,683.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.