Home / 84,719.31-127,042.05-28,548.95

Finding the Fourth Proportional to 84,719.31, 127,042.05 and 28,548.95

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Solution

The fourth proportional to 84,719.31, 127,042.05 and 28,548.95 is: 42,810.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,719.31 : 127,042.05 = 28,548.95 : x
  2. Step 2: Convert to fraction form
    84,719.31/127,042.05 = 28,548.95/x
  3. Step 3: Cross multiply
    84,719.31x = 127,042.05 × 28,548.95
  4. Step 4: Simplify right side
    84,719.31x = 3,626,916,990.60
  5. Step 5: Solve for x
    x = 3,626,916,990.60/84,719.31
  6. Step 6: Final answer
    x = 42,810.98

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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.