Home / 53,179.13-73,386.87-28,980.05

Finding the Fourth Proportional to 53,179.13, 73,386.87 and 28,980.05

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Solution

The fourth proportional to 53,179.13, 73,386.87 and 28,980.05 is: 39,992.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,179.13 : 73,386.87 = 28,980.05 : x
  2. Step 2: Convert to fraction form
    53,179.13/73,386.87 = 28,980.05/x
  3. Step 3: Cross multiply
    53,179.13x = 73,386.87 × 28,980.05
  4. Step 4: Simplify right side
    53,179.13x = 2,126,754,795.01
  5. Step 5: Solve for x
    x = 2,126,754,795.01/53,179.13
  6. Step 6: Final answer
    x = 39,992.29

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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.