Home / 79,260.78-109,387.70-45,274.35

Finding the Fourth Proportional to 79,260.78, 109,387.70 and 45,274.35

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Solution

The fourth proportional to 79,260.78, 109,387.70 and 45,274.35 is: 62,483.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,260.78 : 109,387.70 = 45,274.35 : x
  2. Step 2: Convert to fraction form
    79,260.78/109,387.70 = 45,274.35/x
  3. Step 3: Cross multiply
    79,260.78x = 109,387.70 × 45,274.35
  4. Step 4: Simplify right side
    79,260.78x = 4,952,457,015.50
  5. Step 5: Solve for x
    x = 4,952,457,015.50/79,260.78
  6. Step 6: Final answer
    x = 62,483.07

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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.