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Finding the Fourth Proportional to 69,010.81, 103,413.62 and 35,686.40

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Solution

The fourth proportional to 69,010.81, 103,413.62 and 35,686.40 is: 53,476.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,010.81 : 103,413.62 = 35,686.40 : x
  2. Step 2: Convert to fraction form
    69,010.81/103,413.62 = 35,686.40/x
  3. Step 3: Cross multiply
    69,010.81x = 103,413.62 × 35,686.40
  4. Step 4: Simplify right side
    69,010.81x = 3,690,459,808.77
  5. Step 5: Solve for x
    x = 3,690,459,808.77/69,010.81
  6. Step 6: Final answer
    x = 53,476.55

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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.