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Finding the Fourth Proportional to 60,548, 90,836.58 and 18,995

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Solution

The fourth proportional to 60,548, 90,836.58 and 18,995 is: 28,497.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,548 : 90,836.58 = 18,995 : x
  2. Step 2: Convert to fraction form
    60,548/90,836.58 = 18,995/x
  3. Step 3: Cross multiply
    60,548x = 90,836.58 × 18,995
  4. Step 4: Simplify right side
    60,548x = 1,725,440,837.10
  5. Step 5: Solve for x
    x = 1,725,440,837.10/60,548
  6. Step 6: Final answer
    x = 28,497.07

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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.