Home / 53,430.73-80,116.45-21,862.95

Finding the Fourth Proportional to 53,430.73, 80,116.45 and 21,862.95

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Solution

The fourth proportional to 53,430.73, 80,116.45 and 21,862.95 is: 32,782.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,430.73 : 80,116.45 = 21,862.95 : x
  2. Step 2: Convert to fraction form
    53,430.73/80,116.45 = 21,862.95/x
  3. Step 3: Cross multiply
    53,430.73x = 80,116.45 × 21,862.95
  4. Step 4: Simplify right side
    53,430.73x = 1,751,581,940.53
  5. Step 5: Solve for x
    x = 1,751,581,940.53/53,430.73
  6. Step 6: Final answer
    x = 32,782.29

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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.