Home / 78,206.76-117,014.88-48,485.42

Finding the Fourth Proportional to 78,206.76, 117,014.88 and 48,485.42

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Solution

The fourth proportional to 78,206.76, 117,014.88 and 48,485.42 is: 72,545.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,206.76 : 117,014.88 = 48,485.42 : x
  2. Step 2: Convert to fraction form
    78,206.76/117,014.88 = 48,485.42/x
  3. Step 3: Cross multiply
    78,206.76x = 117,014.88 × 48,485.42
  4. Step 4: Simplify right side
    78,206.76x = 5,673,515,603.05
  5. Step 5: Solve for x
    x = 5,673,515,603.05/78,206.76
  6. Step 6: Final answer
    x = 72,545.08

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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.