Home / 84,263.40-126,352.74-28,083.81

Finding the Fourth Proportional to 84,263.40, 126,352.74 and 28,083.81

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Solution

The fourth proportional to 84,263.40, 126,352.74 and 28,083.81 is: 42,111.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,263.40 : 126,352.74 = 28,083.81 : x
  2. Step 2: Convert to fraction form
    84,263.40/126,352.74 = 28,083.81/x
  3. Step 3: Cross multiply
    84,263.40x = 126,352.74 × 28,083.81
  4. Step 4: Simplify right side
    84,263.40x = 3,548,466,343.14
  5. Step 5: Solve for x
    x = 3,548,466,343.14/84,263.40
  6. Step 6: Final answer
    x = 42,111.60

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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.