Home / 51,905.28-77,822.40-18,624.60

Finding the Fourth Proportional to 51,905.28, 77,822.40 and 18,624.60

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Solution

The fourth proportional to 51,905.28, 77,822.40 and 18,624.60 is: 27,924.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,905.28 : 77,822.40 = 18,624.60 : x
  2. Step 2: Convert to fraction form
    51,905.28/77,822.40 = 18,624.60/x
  3. Step 3: Cross multiply
    51,905.28x = 77,822.40 × 18,624.60
  4. Step 4: Simplify right side
    51,905.28x = 1,449,411,071.04
  5. Step 5: Solve for x
    x = 1,449,411,071.04/51,905.28
  6. Step 6: Final answer
    x = 27,924.15

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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.