Home / 77,401.43-116,129.81-47,068.28

Finding the Fourth Proportional to 77,401.43, 116,129.81 and 47,068.28

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Solution

The fourth proportional to 77,401.43, 116,129.81 and 47,068.28 is: 70,619.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,401.43 : 116,129.81 = 47,068.28 : x
  2. Step 2: Convert to fraction form
    77,401.43/116,129.81 = 47,068.28/x
  3. Step 3: Cross multiply
    77,401.43x = 116,129.81 × 47,068.28
  4. Step 4: Simplify right side
    77,401.43x = 5,466,030,413.43
  5. Step 5: Solve for x
    x = 5,466,030,413.43/77,401.43
  6. Step 6: Final answer
    x = 70,619.24

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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.