Home / 56,859.36-78,465.72-31,708.84

Finding the Fourth Proportional to 56,859.36, 78,465.72 and 31,708.84

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Solution

The fourth proportional to 56,859.36, 78,465.72 and 31,708.84 is: 43,758.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,859.36 : 78,465.72 = 31,708.84 : x
  2. Step 2: Convert to fraction form
    56,859.36/78,465.72 = 31,708.84/x
  3. Step 3: Cross multiply
    56,859.36x = 78,465.72 × 31,708.84
  4. Step 4: Simplify right side
    56,859.36x = 2,488,056,960.96
  5. Step 5: Solve for x
    x = 2,488,056,960.96/56,859.36
  6. Step 6: Final answer
    x = 43,758.09

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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.