Home / 69,000.86-103,632.60-42,888.08

Finding the Fourth Proportional to 69,000.86, 103,632.60 and 42,888.08

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Solution

The fourth proportional to 69,000.86, 103,632.60 and 42,888.08 is: 64,413.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,000.86 : 103,632.60 = 42,888.08 : x
  2. Step 2: Convert to fraction form
    69,000.86/103,632.60 = 42,888.08/x
  3. Step 3: Cross multiply
    69,000.86x = 103,632.60 × 42,888.08
  4. Step 4: Simplify right side
    69,000.86x = 4,444,603,239.41
  5. Step 5: Solve for x
    x = 4,444,603,239.41/69,000.86
  6. Step 6: Final answer
    x = 64,413.74

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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.