Home / 84,946.31-127,428.69-28,013.23

Finding the Fourth Proportional to 84,946.31, 127,428.69 and 28,013.23

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Solution

The fourth proportional to 84,946.31, 127,428.69 and 28,013.23 is: 42,022.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,946.31 : 127,428.69 = 28,013.23 : x
  2. Step 2: Convert to fraction form
    84,946.31/127,428.69 = 28,013.23/x
  3. Step 3: Cross multiply
    84,946.31x = 127,428.69 × 28,013.23
  4. Step 4: Simplify right side
    84,946.31x = 3,569,688,424.36
  5. Step 5: Solve for x
    x = 3,569,688,424.36/84,946.31
  6. Step 6: Final answer
    x = 42,022.88

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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.