Home / 77,632.68-107,120.02-43,636.67

Finding the Fourth Proportional to 77,632.68, 107,120.02 and 43,636.67

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Solution

The fourth proportional to 77,632.68, 107,120.02 and 43,636.67 is: 60,211.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,632.68 : 107,120.02 = 43,636.67 : x
  2. Step 2: Convert to fraction form
    77,632.68/107,120.02 = 43,636.67/x
  3. Step 3: Cross multiply
    77,632.68x = 107,120.02 × 43,636.67
  4. Step 4: Simplify right side
    77,632.68x = 4,674,361,404.51
  5. Step 5: Solve for x
    x = 4,674,361,404.51/77,632.68
  6. Step 6: Final answer
    x = 60,211.26

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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.