Home / 252,541.05-378,802.35-75,043.45

Finding the Fourth Proportional to 252,541.05, 378,802.35 and 75,043.45

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Solution

The fourth proportional to 252,541.05, 378,802.35 and 75,043.45 is: 112,562.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,541.05 : 378,802.35 = 75,043.45 : x
  2. Step 2: Convert to fraction form
    252,541.05/378,802.35 = 75,043.45/x
  3. Step 3: Cross multiply
    252,541.05x = 378,802.35 × 75,043.45
  4. Step 4: Simplify right side
    252,541.05x = 28,426,635,967.02
  5. Step 5: Solve for x
    x = 28,426,635,967.02/252,541.05
  6. Step 6: Final answer
    x = 112,562.44

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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.