Home / 84,746.25-127,137.60-28,587.74

Finding the Fourth Proportional to 84,746.25, 127,137.60 and 28,587.74

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Solution

The fourth proportional to 84,746.25, 127,137.60 and 28,587.74 is: 42,887.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,746.25 : 127,137.60 = 28,587.74 : x
  2. Step 2: Convert to fraction form
    84,746.25/127,137.60 = 28,587.74/x
  3. Step 3: Cross multiply
    84,746.25x = 127,137.60 × 28,587.74
  4. Step 4: Simplify right side
    84,746.25x = 3,634,576,017.34
  5. Step 5: Solve for x
    x = 3,634,576,017.34/84,746.25
  6. Step 6: Final answer
    x = 42,887.75

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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.