Home / 77,559.23-116,109.21-47,881.64

Finding the Fourth Proportional to 77,559.23, 116,109.21 and 47,881.64

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Solution

The fourth proportional to 77,559.23, 116,109.21 and 47,881.64 is: 71,680.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,559.23 : 116,109.21 = 47,881.64 : x
  2. Step 2: Convert to fraction form
    77,559.23/116,109.21 = 47,881.64/x
  3. Step 3: Cross multiply
    77,559.23x = 116,109.21 × 47,881.64
  4. Step 4: Simplify right side
    77,559.23x = 5,559,499,393.90
  5. Step 5: Solve for x
    x = 5,559,499,393.90/77,559.23
  6. Step 6: Final answer
    x = 71,680.69

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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.