Home / 56,922.56-78,549.08-31,424.81

Finding the Fourth Proportional to 56,922.56, 78,549.08 and 31,424.81

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Solution

The fourth proportional to 56,922.56, 78,549.08 and 31,424.81 is: 43,363.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,922.56 : 78,549.08 = 31,424.81 : x
  2. Step 2: Convert to fraction form
    56,922.56/78,549.08 = 31,424.81/x
  3. Step 3: Cross multiply
    56,922.56x = 78,549.08 × 31,424.81
  4. Step 4: Simplify right side
    56,922.56x = 2,468,389,364.81
  5. Step 5: Solve for x
    x = 2,468,389,364.81/56,922.56
  6. Step 6: Final answer
    x = 43,363.99

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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.