Home / 98,724.80-148,044-28,602.56

Finding the Fourth Proportional to 98,724.80, 148,044 and 28,602.56

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Solution

The fourth proportional to 98,724.80, 148,044 and 28,602.56 is: 42,891.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,724.80 : 148,044 = 28,602.56 : x
  2. Step 2: Convert to fraction form
    98,724.80/148,044 = 28,602.56/x
  3. Step 3: Cross multiply
    98,724.80x = 148,044 × 28,602.56
  4. Step 4: Simplify right side
    98,724.80x = 4,234,437,392.64
  5. Step 5: Solve for x
    x = 4,234,437,392.64/98,724.80
  6. Step 6: Final answer
    x = 42,891.32

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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.