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Finding the Fourth Proportional to 60,570, 90,858.65 and 19,017

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Solution

The fourth proportional to 60,570, 90,858.65 and 19,017 is: 28,526.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,570 : 90,858.65 = 19,017 : x
  2. Step 2: Convert to fraction form
    60,570/90,858.65 = 19,017/x
  3. Step 3: Cross multiply
    60,570x = 90,858.65 × 19,017
  4. Step 4: Simplify right side
    60,570x = 1,727,858,851.97
  5. Step 5: Solve for x
    x = 1,727,858,851.97/60,570
  6. Step 6: Final answer
    x = 28,526.64

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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.