Home / 77,413.20-116,119.80-47,864.40

Finding the Fourth Proportional to 77,413.20, 116,119.80 and 47,864.40

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Solution

The fourth proportional to 77,413.20, 116,119.80 and 47,864.40 is: 71,796.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,413.20 : 116,119.80 = 47,864.40 : x
  2. Step 2: Convert to fraction form
    77,413.20/116,119.80 = 47,864.40/x
  3. Step 3: Cross multiply
    77,413.20x = 116,119.80 × 47,864.40
  4. Step 4: Simplify right side
    77,413.20x = 5,558,004,555.12
  5. Step 5: Solve for x
    x = 5,558,004,555.12/77,413.20
  6. Step 6: Final answer
    x = 71,796.60

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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.