Home / 77,768.10-116,654.28-21,608.38

Finding the Fourth Proportional to 77,768.10, 116,654.28 and 21,608.38

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Solution

The fourth proportional to 77,768.10, 116,654.28 and 21,608.38 is: 32,413.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,768.10 : 116,654.28 = 21,608.38 : x
  2. Step 2: Convert to fraction form
    77,768.10/116,654.28 = 21,608.38/x
  3. Step 3: Cross multiply
    77,768.10x = 116,654.28 × 21,608.38
  4. Step 4: Simplify right side
    77,768.10x = 2,520,710,010.87
  5. Step 5: Solve for x
    x = 2,520,710,010.87/77,768.10
  6. Step 6: Final answer
    x = 32,413.16

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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.