Home / 77,636.40-107,147.18-43,184.57

Finding the Fourth Proportional to 77,636.40, 107,147.18 and 43,184.57

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Solution

The fourth proportional to 77,636.40, 107,147.18 and 43,184.57 is: 59,599.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,636.40 : 107,147.18 = 43,184.57 : x
  2. Step 2: Convert to fraction form
    77,636.40/107,147.18 = 43,184.57/x
  3. Step 3: Cross multiply
    77,636.40x = 107,147.18 × 43,184.57
  4. Step 4: Simplify right side
    77,636.40x = 4,627,104,143.35
  5. Step 5: Solve for x
    x = 4,627,104,143.35/77,636.40
  6. Step 6: Final answer
    x = 59,599.67

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1.5x scale

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.