Home / 55,899.01-77,140.92-30,405.55

Finding the Fourth Proportional to 55,899.01, 77,140.92 and 30,405.55

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Solution

The fourth proportional to 55,899.01, 77,140.92 and 30,405.55 is: 41,959.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,899.01 : 77,140.92 = 30,405.55 : x
  2. Step 2: Convert to fraction form
    55,899.01/77,140.92 = 30,405.55/x
  3. Step 3: Cross multiply
    55,899.01x = 77,140.92 × 30,405.55
  4. Step 4: Simplify right side
    55,899.01x = 2,345,512,100.11
  5. Step 5: Solve for x
    x = 2,345,512,100.11/55,899.01
  6. Step 6: Final answer
    x = 41,959.81

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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.