Home / 47,120.09-70,669.14-13,831.25

Finding the Fourth Proportional to 47,120.09, 70,669.14 and 13,831.25

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Solution

The fourth proportional to 47,120.09, 70,669.14 and 13,831.25 is: 20,743.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,120.09 : 70,669.14 = 13,831.25 : x
  2. Step 2: Convert to fraction form
    47,120.09/70,669.14 = 13,831.25/x
  3. Step 3: Cross multiply
    47,120.09x = 70,669.14 × 13,831.25
  4. Step 4: Simplify right side
    47,120.09x = 977,442,189.28
  5. Step 5: Solve for x
    x = 977,442,189.28/47,120.09
  6. Step 6: Final answer
    x = 20,743.64

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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.