Home / 56,755.13-78,322.10-31,604.63

Finding the Fourth Proportional to 56,755.13, 78,322.10 and 31,604.63

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Solution

The fourth proportional to 56,755.13, 78,322.10 and 31,604.63 is: 43,614.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,755.13 : 78,322.10 = 31,604.63 : x
  2. Step 2: Convert to fraction form
    56,755.13/78,322.10 = 31,604.63/x
  3. Step 3: Cross multiply
    56,755.13x = 78,322.10 × 31,604.63
  4. Step 4: Simplify right side
    56,755.13x = 2,475,340,441.69
  5. Step 5: Solve for x
    x = 2,475,340,441.69/56,755.13
  6. Step 6: Final answer
    x = 43,614.40

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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.