Home / 77,870.80-116,636.56-51,186.67

Finding the Fourth Proportional to 77,870.80, 116,636.56 and 51,186.67

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Solution

The fourth proportional to 77,870.80, 116,636.56 and 51,186.67 is: 76,668.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,870.80 : 116,636.56 = 51,186.67 : x
  2. Step 2: Convert to fraction form
    77,870.80/116,636.56 = 51,186.67/x
  3. Step 3: Cross multiply
    77,870.80x = 116,636.56 × 51,186.67
  4. Step 4: Simplify right side
    77,870.80x = 5,970,237,106.66
  5. Step 5: Solve for x
    x = 5,970,237,106.66/77,870.80
  6. Step 6: Final answer
    x = 76,668.50

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1.5x scale

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.