Home / 90,773.36-136,160.65-31,608.84

Finding the Fourth Proportional to 90,773.36, 136,160.65 and 31,608.84

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Solution

The fourth proportional to 90,773.36, 136,160.65 and 31,608.84 is: 47,413.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,773.36 : 136,160.65 = 31,608.84 : x
  2. Step 2: Convert to fraction form
    90,773.36/136,160.65 = 31,608.84/x
  3. Step 3: Cross multiply
    90,773.36x = 136,160.65 × 31,608.84
  4. Step 4: Simplify right side
    90,773.36x = 4,303,879,440.32
  5. Step 5: Solve for x
    x = 4,303,879,440.32/90,773.36
  6. Step 6: Final answer
    x = 47,413.47

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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.