Home / 56,558.23-78,051.29-31,066.95

Finding the Fourth Proportional to 56,558.23, 78,051.29 and 31,066.95

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Solution

The fourth proportional to 56,558.23, 78,051.29 and 31,066.95 is: 42,872.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,558.23 : 78,051.29 = 31,066.95 : x
  2. Step 2: Convert to fraction form
    56,558.23/78,051.29 = 31,066.95/x
  3. Step 3: Cross multiply
    56,558.23x = 78,051.29 × 31,066.95
  4. Step 4: Simplify right side
    56,558.23x = 2,424,815,523.87
  5. Step 5: Solve for x
    x = 2,424,815,523.87/56,558.23
  6. Step 6: Final answer
    x = 42,872.90

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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.