Home / 55,900.32-77,143.44-30,749.76

Finding the Fourth Proportional to 55,900.32, 77,143.44 and 30,749.76

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Solution

The fourth proportional to 55,900.32, 77,143.44 and 30,749.76 is: 42,435.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,900.32 : 77,143.44 = 30,749.76 : x
  2. Step 2: Convert to fraction form
    55,900.32/77,143.44 = 30,749.76/x
  3. Step 3: Cross multiply
    55,900.32x = 77,143.44 × 30,749.76
  4. Step 4: Simplify right side
    55,900.32x = 2,372,142,265.57
  5. Step 5: Solve for x
    x = 2,372,142,265.57/55,900.32
  6. Step 6: Final answer
    x = 42,435.22

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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.