Home / 74,016.55-110,982.36-28,985.20

Finding the Fourth Proportional to 74,016.55, 110,982.36 and 28,985.20

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Solution

The fourth proportional to 74,016.55, 110,982.36 and 28,985.20 is: 43,461.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,016.55 : 110,982.36 = 28,985.20 : x
  2. Step 2: Convert to fraction form
    74,016.55/110,982.36 = 28,985.20/x
  3. Step 3: Cross multiply
    74,016.55x = 110,982.36 × 28,985.20
  4. Step 4: Simplify right side
    74,016.55x = 3,216,845,901.07
  5. Step 5: Solve for x
    x = 3,216,845,901.07/74,016.55
  6. Step 6: Final answer
    x = 43,461.17

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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.