Home / 84,916.10-127,386.30-25,756.40

Finding the Fourth Proportional to 84,916.10, 127,386.30 and 25,756.40

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Solution

The fourth proportional to 84,916.10, 127,386.30 and 25,756.40 is: 38,638.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,916.10 : 127,386.30 = 25,756.40 : x
  2. Step 2: Convert to fraction form
    84,916.10/127,386.30 = 25,756.40/x
  3. Step 3: Cross multiply
    84,916.10x = 127,386.30 × 25,756.40
  4. Step 4: Simplify right side
    84,916.10x = 3,281,012,497.32
  5. Step 5: Solve for x
    x = 3,281,012,497.32/84,916.10
  6. Step 6: Final answer
    x = 38,638.29

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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.