Home / 47,128.05-70,684.74-30,605.22

Finding the Fourth Proportional to 47,128.05, 70,684.74 and 30,605.22

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Solution

The fourth proportional to 47,128.05, 70,684.74 and 30,605.22 is: 45,903.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,128.05 : 70,684.74 = 30,605.22 : x
  2. Step 2: Convert to fraction form
    47,128.05/70,684.74 = 30,605.22/x
  3. Step 3: Cross multiply
    47,128.05x = 70,684.74 × 30,605.22
  4. Step 4: Simplify right side
    47,128.05x = 2,163,322,018.34
  5. Step 5: Solve for x
    x = 2,163,322,018.34/47,128.05
  6. Step 6: Final answer
    x = 45,903.07

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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.