Home / 56,880.11-78,493.79-31,385.84

Finding the Fourth Proportional to 56,880.11, 78,493.79 and 31,385.84

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Solution

The fourth proportional to 56,880.11, 78,493.79 and 31,385.84 is: 43,312.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,880.11 : 78,493.79 = 31,385.84 : x
  2. Step 2: Convert to fraction form
    56,880.11/78,493.79 = 31,385.84/x
  3. Step 3: Cross multiply
    56,880.11x = 78,493.79 × 31,385.84
  4. Step 4: Simplify right side
    56,880.11x = 2,463,593,219.93
  5. Step 5: Solve for x
    x = 2,463,593,219.93/56,880.11
  6. Step 6: Final answer
    x = 43,312.03

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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.