Home / 55,958.18-77,222.58-30,807.68

Finding the Fourth Proportional to 55,958.18, 77,222.58 and 30,807.68

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Solution

The fourth proportional to 55,958.18, 77,222.58 and 30,807.68 is: 42,514.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,958.18 : 77,222.58 = 30,807.68 : x
  2. Step 2: Convert to fraction form
    55,958.18/77,222.58 = 30,807.68/x
  3. Step 3: Cross multiply
    55,958.18x = 77,222.58 × 30,807.68
  4. Step 4: Simplify right side
    55,958.18x = 2,379,048,533.41
  5. Step 5: Solve for x
    x = 2,379,048,533.41/55,958.18
  6. Step 6: Final answer
    x = 42,514.76

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1.5x scale

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.