Home / 84,862.34-127,309.93-28,711.60

Finding the Fourth Proportional to 84,862.34, 127,309.93 and 28,711.60

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Solution

The fourth proportional to 84,862.34, 127,309.93 and 28,711.60 is: 43,072.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,862.34 : 127,309.93 = 28,711.60 : x
  2. Step 2: Convert to fraction form
    84,862.34/127,309.93 = 28,711.60/x
  3. Step 3: Cross multiply
    84,862.34x = 127,309.93 × 28,711.60
  4. Step 4: Simplify right side
    84,862.34x = 3,655,272,112.25
  5. Step 5: Solve for x
    x = 3,655,272,112.25/84,862.34
  6. Step 6: Final answer
    x = 43,072.96

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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.