Home / 54,643.27-75,413.12-31,980.91

Finding the Fourth Proportional to 54,643.27, 75,413.12 and 31,980.91

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Solution

The fourth proportional to 54,643.27, 75,413.12 and 31,980.91 is: 44,136.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,643.27 : 75,413.12 = 31,980.91 : x
  2. Step 2: Convert to fraction form
    54,643.27/75,413.12 = 31,980.91/x
  3. Step 3: Cross multiply
    54,643.27x = 75,413.12 × 31,980.91
  4. Step 4: Simplify right side
    54,643.27x = 2,411,780,203.54
  5. Step 5: Solve for x
    x = 2,411,780,203.54/54,643.27
  6. Step 6: Final answer
    x = 44,136.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.