Home / 56,285.94-77,675.21-30,791.76

Finding the Fourth Proportional to 56,285.94, 77,675.21 and 30,791.76

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Solution

The fourth proportional to 56,285.94, 77,675.21 and 30,791.76 is: 42,492.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,285.94 : 77,675.21 = 30,791.76 : x
  2. Step 2: Convert to fraction form
    56,285.94/77,675.21 = 30,791.76/x
  3. Step 3: Cross multiply
    56,285.94x = 77,675.21 × 30,791.76
  4. Step 4: Simplify right side
    56,285.94x = 2,391,756,424.27
  5. Step 5: Solve for x
    x = 2,391,756,424.27/56,285.94
  6. Step 6: Final answer
    x = 42,492.96

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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.