Home / 90,941.94-136,413.18-31,777.62

Finding the Fourth Proportional to 90,941.94, 136,413.18 and 31,777.62

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Solution

The fourth proportional to 90,941.94, 136,413.18 and 31,777.62 is: 47,666.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,941.94 : 136,413.18 = 31,777.62 : x
  2. Step 2: Convert to fraction form
    90,941.94/136,413.18 = 31,777.62/x
  3. Step 3: Cross multiply
    90,941.94x = 136,413.18 × 31,777.62
  4. Step 4: Simplify right side
    90,941.94x = 4,334,886,197.03
  5. Step 5: Solve for x
    x = 4,334,886,197.03/90,941.94
  6. Step 6: Final answer
    x = 47,666.52

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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.