Home / 77,711.16-107,241.23-43,719.66

Finding the Fourth Proportional to 77,711.16, 107,241.23 and 43,719.66

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Solution

The fourth proportional to 77,711.16, 107,241.23 and 43,719.66 is: 60,333.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,711.16 : 107,241.23 = 43,719.66 : x
  2. Step 2: Convert to fraction form
    77,711.16/107,241.23 = 43,719.66/x
  3. Step 3: Cross multiply
    77,711.16x = 107,241.23 × 43,719.66
  4. Step 4: Simplify right side
    77,711.16x = 4,688,549,894.98
  5. Step 5: Solve for x
    x = 4,688,549,894.98/77,711.16
  6. Step 6: Final answer
    x = 60,333.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.