Home / 84,702.18-127,064.97-28,558.34

Finding the Fourth Proportional to 84,702.18, 127,064.97 and 28,558.34

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Solution

The fourth proportional to 84,702.18, 127,064.97 and 28,558.34 is: 42,841.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,702.18 : 127,064.97 = 28,558.34 : x
  2. Step 2: Convert to fraction form
    84,702.18/127,064.97 = 28,558.34/x
  3. Step 3: Cross multiply
    84,702.18x = 127,064.97 × 28,558.34
  4. Step 4: Simplify right side
    84,702.18x = 3,628,763,980.02
  5. Step 5: Solve for x
    x = 3,628,763,980.02/84,702.18
  6. Step 6: Final answer
    x = 42,841.45

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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.