Home / 77,010.66-115,544.61-47,086.20

Finding the Fourth Proportional to 77,010.66, 115,544.61 and 47,086.20

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Solution

The fourth proportional to 77,010.66, 115,544.61 and 47,086.20 is: 70,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,010.66 : 115,544.61 = 47,086.20 : x
  2. Step 2: Convert to fraction form
    77,010.66/115,544.61 = 47,086.20/x
  3. Step 3: Cross multiply
    77,010.66x = 115,544.61 × 47,086.20
  4. Step 4: Simplify right side
    77,010.66x = 5,440,556,615.38
  5. Step 5: Solve for x
    x = 5,440,556,615.38/77,010.66
  6. Step 6: Final answer
    x = 70,646.80

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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.