Home / 91,463.48-137,208.43-28,288.81

Finding the Fourth Proportional to 91,463.48, 137,208.43 and 28,288.81

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Solution

The fourth proportional to 91,463.48, 137,208.43 and 28,288.81 is: 42,437.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,463.48 : 137,208.43 = 28,288.81 : x
  2. Step 2: Convert to fraction form
    91,463.48/137,208.43 = 28,288.81/x
  3. Step 3: Cross multiply
    91,463.48x = 137,208.43 × 28,288.81
  4. Step 4: Simplify right side
    91,463.48x = 3,881,463,413.54
  5. Step 5: Solve for x
    x = 3,881,463,413.54/91,463.48
  6. Step 6: Final answer
    x = 42,437.30

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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.