Home / 55,177.95-76,140.30-30,973.37

Finding the Fourth Proportional to 55,177.95, 76,140.30 and 30,973.37

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Solution

The fourth proportional to 55,177.95, 76,140.30 and 30,973.37 is: 42,740.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,177.95 : 76,140.30 = 30,973.37 : x
  2. Step 2: Convert to fraction form
    55,177.95/76,140.30 = 30,973.37/x
  3. Step 3: Cross multiply
    55,177.95x = 76,140.30 × 30,973.37
  4. Step 4: Simplify right side
    55,177.95x = 2,358,321,847.55
  5. Step 5: Solve for x
    x = 2,358,321,847.55/55,177.95
  6. Step 6: Final answer
    x = 42,740.30

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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.