Home / 85,647.36-118,184.11-47,400.83

Finding the Fourth Proportional to 85,647.36, 118,184.11 and 47,400.83

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Solution

The fourth proportional to 85,647.36, 118,184.11 and 47,400.83 is: 65,408.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,647.36 : 118,184.11 = 47,400.83 : x
  2. Step 2: Convert to fraction form
    85,647.36/118,184.11 = 47,400.83/x
  3. Step 3: Cross multiply
    85,647.36x = 118,184.11 × 47,400.83
  4. Step 4: Simplify right side
    85,647.36x = 5,602,025,405.80
  5. Step 5: Solve for x
    x = 5,602,025,405.80/85,647.36
  6. Step 6: Final answer
    x = 65,408.03

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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.