Home / 55,628.70-76,766.31-30,477.66

Finding the Fourth Proportional to 55,628.70, 76,766.31 and 30,477.66

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Solution

The fourth proportional to 55,628.70, 76,766.31 and 30,477.66 is: 42,058.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,628.70 : 76,766.31 = 30,477.66 : x
  2. Step 2: Convert to fraction form
    55,628.70/76,766.31 = 30,477.66/x
  3. Step 3: Cross multiply
    55,628.70x = 76,766.31 × 30,477.66
  4. Step 4: Simplify right side
    55,628.70x = 2,339,657,495.63
  5. Step 5: Solve for x
    x = 2,339,657,495.63/55,628.70
  6. Step 6: Final answer
    x = 42,058.46

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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.