Home / 76,413.32-105,450.80-42,421.26

Finding the Fourth Proportional to 76,413.32, 105,450.80 and 42,421.26

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Solution

The fourth proportional to 76,413.32, 105,450.80 and 42,421.26 is: 58,541.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,413.32 : 105,450.80 = 42,421.26 : x
  2. Step 2: Convert to fraction form
    76,413.32/105,450.80 = 42,421.26/x
  3. Step 3: Cross multiply
    76,413.32x = 105,450.80 × 42,421.26
  4. Step 4: Simplify right side
    76,413.32x = 4,473,355,804.01
  5. Step 5: Solve for x
    x = 4,473,355,804.01/76,413.32
  6. Step 6: Final answer
    x = 58,541.57

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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.