Home / 55,914-77,161.32-30,762.96

Finding the Fourth Proportional to 55,914, 77,161.32 and 30,762.96

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Solution

The fourth proportional to 55,914, 77,161.32 and 30,762.96 is: 42,452.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,914 : 77,161.32 = 30,762.96 : x
  2. Step 2: Convert to fraction form
    55,914/77,161.32 = 30,762.96/x
  3. Step 3: Cross multiply
    55,914x = 77,161.32 × 30,762.96
  4. Step 4: Simplify right side
    55,914x = 2,373,710,600.71
  5. Step 5: Solve for x
    x = 2,373,710,600.71/55,914
  6. Step 6: Final answer
    x = 42,452.88

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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.