Home / 85,745.21-118,280.72-67,528.83

Finding the Fourth Proportional to 85,745.21, 118,280.72 and 67,528.83

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Solution

The fourth proportional to 85,745.21, 118,280.72 and 67,528.83 is: 93,152.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,745.21 : 118,280.72 = 67,528.83 : x
  2. Step 2: Convert to fraction form
    85,745.21/118,280.72 = 67,528.83/x
  3. Step 3: Cross multiply
    85,745.21x = 118,280.72 × 67,528.83
  4. Step 4: Simplify right side
    85,745.21x = 7,987,358,633.16
  5. Step 5: Solve for x
    x = 7,987,358,633.16/85,745.21
  6. Step 6: Final answer
    x = 93,152.24

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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.