Home / 53,430.48-80,116.09-21,862.69

Finding the Fourth Proportional to 53,430.48, 80,116.09 and 21,862.69

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Solution

The fourth proportional to 53,430.48, 80,116.09 and 21,862.69 is: 32,781.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,430.48 : 80,116.09 = 21,862.69 : x
  2. Step 2: Convert to fraction form
    53,430.48/80,116.09 = 21,862.69/x
  3. Step 3: Cross multiply
    53,430.48x = 80,116.09 × 21,862.69
  4. Step 4: Simplify right side
    53,430.48x = 1,751,552,984.74
  5. Step 5: Solve for x
    x = 1,751,552,984.74/53,430.48
  6. Step 6: Final answer
    x = 32,781.91

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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.