Home / 56,203.91-77,560.47-30,709.73

Finding the Fourth Proportional to 56,203.91, 77,560.47 and 30,709.73

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Solution

The fourth proportional to 56,203.91, 77,560.47 and 30,709.73 is: 42,378.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,203.91 : 77,560.47 = 30,709.73 : x
  2. Step 2: Convert to fraction form
    56,203.91/77,560.47 = 30,709.73/x
  3. Step 3: Cross multiply
    56,203.91x = 77,560.47 × 30,709.73
  4. Step 4: Simplify right side
    56,203.91x = 2,381,860,704.57
  5. Step 5: Solve for x
    x = 2,381,860,704.57/56,203.91
  6. Step 6: Final answer
    x = 42,378.92

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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.