Home / 51,403.01-77,128.20-31,668.98

Finding the Fourth Proportional to 51,403.01, 77,128.20 and 31,668.98

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Solution

The fourth proportional to 51,403.01, 77,128.20 and 31,668.98 is: 47,518.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,403.01 : 77,128.20 = 31,668.98 : x
  2. Step 2: Convert to fraction form
    51,403.01/77,128.20 = 31,668.98/x
  3. Step 3: Cross multiply
    51,403.01x = 77,128.20 × 31,668.98
  4. Step 4: Simplify right side
    51,403.01x = 2,442,571,037.60
  5. Step 5: Solve for x
    x = 2,442,571,037.60/51,403.01
  6. Step 6: Final answer
    x = 47,518.06

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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.