Home / 84,368.48-126,511.40-28,189.32

Finding the Fourth Proportional to 84,368.48, 126,511.40 and 28,189.32

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Solution

The fourth proportional to 84,368.48, 126,511.40 and 28,189.32 is: 42,270.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,368.48 : 126,511.40 = 28,189.32 : x
  2. Step 2: Convert to fraction form
    84,368.48/126,511.40 = 28,189.32/x
  3. Step 3: Cross multiply
    84,368.48x = 126,511.40 × 28,189.32
  4. Step 4: Simplify right side
    84,368.48x = 3,566,270,338.25
  5. Step 5: Solve for x
    x = 3,566,270,338.25/84,368.48
  6. Step 6: Final answer
    x = 42,270.17

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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.