Home / 56,726.72-78,284.73-31,235.72

Finding the Fourth Proportional to 56,726.72, 78,284.73 and 31,235.72

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Solution

The fourth proportional to 56,726.72, 78,284.73 and 31,235.72 is: 43,106.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,726.72 : 78,284.73 = 31,235.72 : x
  2. Step 2: Convert to fraction form
    56,726.72/78,284.73 = 31,235.72/x
  3. Step 3: Cross multiply
    56,726.72x = 78,284.73 × 31,235.72
  4. Step 4: Simplify right side
    56,726.72x = 2,445,279,515.13
  5. Step 5: Solve for x
    x = 2,445,279,515.13/56,726.72
  6. Step 6: Final answer
    x = 43,106.31

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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.