Home / 56,886.25-78,502.47-31,392.85

Finding the Fourth Proportional to 56,886.25, 78,502.47 and 31,392.85

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Solution

The fourth proportional to 56,886.25, 78,502.47 and 31,392.85 is: 43,321.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,886.25 : 78,502.47 = 31,392.85 : x
  2. Step 2: Convert to fraction form
    56,886.25/78,502.47 = 31,392.85/x
  3. Step 3: Cross multiply
    56,886.25x = 78,502.47 × 31,392.85
  4. Step 4: Simplify right side
    56,886.25x = 2,464,415,872.83
  5. Step 5: Solve for x
    x = 2,464,415,872.83/56,886.25
  6. Step 6: Final answer
    x = 43,321.82

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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.