Home / 84,679.04-127,018.61-21,503.90

Finding the Fourth Proportional to 84,679.04, 127,018.61 and 21,503.90

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Solution

The fourth proportional to 84,679.04, 127,018.61 and 21,503.90 is: 32,255.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,679.04 : 127,018.61 = 21,503.90 : x
  2. Step 2: Convert to fraction form
    84,679.04/127,018.61 = 21,503.90/x
  3. Step 3: Cross multiply
    84,679.04x = 127,018.61 × 21,503.90
  4. Step 4: Simplify right side
    84,679.04x = 2,731,395,184.73
  5. Step 5: Solve for x
    x = 2,731,395,184.73/84,679.04
  6. Step 6: Final answer
    x = 32,255.86

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1.5x scale

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.