Home / 55,914.08-77,161.56-30,765.20

Finding the Fourth Proportional to 55,914.08, 77,161.56 and 30,765.20

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Solution

The fourth proportional to 55,914.08, 77,161.56 and 30,765.20 is: 42,456.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,914.08 : 77,161.56 = 30,765.20 : x
  2. Step 2: Convert to fraction form
    55,914.08/77,161.56 = 30,765.20/x
  3. Step 3: Cross multiply
    55,914.08x = 77,161.56 × 30,765.20
  4. Step 4: Simplify right side
    55,914.08x = 2,373,890,825.71
  5. Step 5: Solve for x
    x = 2,373,890,825.71/55,914.08
  6. Step 6: Final answer
    x = 42,456.05

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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.