Home / 56,064.56-77,370-30,912.56

Finding the Fourth Proportional to 56,064.56, 77,370 and 30,912.56

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Solution

The fourth proportional to 56,064.56, 77,370 and 30,912.56 is: 42,659.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,064.56 : 77,370 = 30,912.56 : x
  2. Step 2: Convert to fraction form
    56,064.56/77,370 = 30,912.56/x
  3. Step 3: Cross multiply
    56,064.56x = 77,370 × 30,912.56
  4. Step 4: Simplify right side
    56,064.56x = 2,391,704,767.20
  5. Step 5: Solve for x
    x = 2,391,704,767.20/56,064.56
  6. Step 6: Final answer
    x = 42,659.83

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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.