Home / 76,173.90-114,271.47-31,790.49

Finding the Fourth Proportional to 76,173.90, 114,271.47 and 31,790.49

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Solution

The fourth proportional to 76,173.90, 114,271.47 and 31,790.49 is: 47,690.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,173.90 : 114,271.47 = 31,790.49 : x
  2. Step 2: Convert to fraction form
    76,173.90/114,271.47 = 31,790.49/x
  3. Step 3: Cross multiply
    76,173.90x = 114,271.47 × 31,790.49
  4. Step 4: Simplify right side
    76,173.90x = 3,632,746,024.32
  5. Step 5: Solve for x
    x = 3,632,746,024.32/76,173.90
  6. Step 6: Final answer
    x = 47,690.17

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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.