Home / 84,865.10-127,281.45-25,702.70

Finding the Fourth Proportional to 84,865.10, 127,281.45 and 25,702.70

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Solution

The fourth proportional to 84,865.10, 127,281.45 and 25,702.70 is: 38,549.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,865.10 : 127,281.45 = 25,702.70 : x
  2. Step 2: Convert to fraction form
    84,865.10/127,281.45 = 25,702.70/x
  3. Step 3: Cross multiply
    84,865.10x = 127,281.45 × 25,702.70
  4. Step 4: Simplify right side
    84,865.10x = 3,271,476,924.92
  5. Step 5: Solve for x
    x = 3,271,476,924.92/84,865.10
  6. Step 6: Final answer
    x = 38,549.14

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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.