Home / 55,420.30-76,480.47-31,548.52

Finding the Fourth Proportional to 55,420.30, 76,480.47 and 31,548.52

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Solution

The fourth proportional to 55,420.30, 76,480.47 and 31,548.52 is: 43,537.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,420.30 : 76,480.47 = 31,548.52 : x
  2. Step 2: Convert to fraction form
    55,420.30/76,480.47 = 31,548.52/x
  3. Step 3: Cross multiply
    55,420.30x = 76,480.47 × 31,548.52
  4. Step 4: Simplify right side
    55,420.30x = 2,412,845,637.40
  5. Step 5: Solve for x
    x = 2,412,845,637.40/55,420.30
  6. Step 6: Final answer
    x = 43,537.22

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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.