Home / 56,688.49-78,230.21-31,537.99

Finding the Fourth Proportional to 56,688.49, 78,230.21 and 31,537.99

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Solution

The fourth proportional to 56,688.49, 78,230.21 and 31,537.99 is: 43,522.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,688.49 : 78,230.21 = 31,537.99 : x
  2. Step 2: Convert to fraction form
    56,688.49/78,230.21 = 31,537.99/x
  3. Step 3: Cross multiply
    56,688.49x = 78,230.21 × 31,537.99
  4. Step 4: Simplify right side
    56,688.49x = 2,467,223,580.68
  5. Step 5: Solve for x
    x = 2,467,223,580.68/56,688.49
  6. Step 6: Final answer
    x = 43,522.48

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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.