Home / 51,128.66-76,726.38-28,985.24

Finding the Fourth Proportional to 51,128.66, 76,726.38 and 28,985.24

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Solution

The fourth proportional to 51,128.66, 76,726.38 and 28,985.24 is: 43,496.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,128.66 : 76,726.38 = 28,985.24 : x
  2. Step 2: Convert to fraction form
    51,128.66/76,726.38 = 28,985.24/x
  3. Step 3: Cross multiply
    51,128.66x = 76,726.38 × 28,985.24
  4. Step 4: Simplify right side
    51,128.66x = 2,223,932,538.63
  5. Step 5: Solve for x
    x = 2,223,932,538.63/51,128.66
  6. Step 6: Final answer
    x = 43,496.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.