Home / 76,386.25-105,413.75-42,852.97

Finding the Fourth Proportional to 76,386.25, 105,413.75 and 42,852.97

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Solution

The fourth proportional to 76,386.25, 105,413.75 and 42,852.97 is: 59,137.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,386.25 : 105,413.75 = 42,852.97 : x
  2. Step 2: Convert to fraction form
    76,386.25/105,413.75 = 42,852.97/x
  3. Step 3: Cross multiply
    76,386.25x = 105,413.75 × 42,852.97
  4. Step 4: Simplify right side
    76,386.25x = 4,517,292,052.07
  5. Step 5: Solve for x
    x = 4,517,292,052.07/76,386.25
  6. Step 6: Final answer
    x = 59,137.50

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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.