Home / 55,768.60-76,960.76-30,619.72

Finding the Fourth Proportional to 55,768.60, 76,960.76 and 30,619.72

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Solution

The fourth proportional to 55,768.60, 76,960.76 and 30,619.72 is: 42,255.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,768.60 : 76,960.76 = 30,619.72 : x
  2. Step 2: Convert to fraction form
    55,768.60/76,960.76 = 30,619.72/x
  3. Step 3: Cross multiply
    55,768.60x = 76,960.76 × 30,619.72
  4. Step 4: Simplify right side
    55,768.60x = 2,356,516,922.19
  5. Step 5: Solve for x
    x = 2,356,516,922.19/55,768.60
  6. Step 6: Final answer
    x = 42,255.26

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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.