Home / 55,914.23-77,162.24-30,420.74

Finding the Fourth Proportional to 55,914.23, 77,162.24 and 30,420.74

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Solution

The fourth proportional to 55,914.23, 77,162.24 and 30,420.74 is: 41,980.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,914.23 : 77,162.24 = 30,420.74 : x
  2. Step 2: Convert to fraction form
    55,914.23/77,162.24 = 30,420.74/x
  3. Step 3: Cross multiply
    55,914.23x = 77,162.24 × 30,420.74
  4. Step 4: Simplify right side
    55,914.23x = 2,347,332,131.10
  5. Step 5: Solve for x
    x = 2,347,332,131.10/55,914.23
  6. Step 6: Final answer
    x = 41,980.95

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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.