Home / 79,237.60-109,376.40-54,069.28

Finding the Fourth Proportional to 79,237.60, 109,376.40 and 54,069.28

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Solution

The fourth proportional to 79,237.60, 109,376.40 and 54,069.28 is: 74,635.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,237.60 : 109,376.40 = 54,069.28 : x
  2. Step 2: Convert to fraction form
    79,237.60/109,376.40 = 54,069.28/x
  3. Step 3: Cross multiply
    79,237.60x = 109,376.40 × 54,069.28
  4. Step 4: Simplify right side
    79,237.60x = 5,913,903,196.99
  5. Step 5: Solve for x
    x = 5,913,903,196.99/79,237.60
  6. Step 6: Final answer
    x = 74,635.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.