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Finding the Fourth Proportional to 60,205, 90,307.77 and 18,652

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Solution

The fourth proportional to 60,205, 90,307.77 and 18,652 is: 27,978.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,205 : 90,307.77 = 18,652 : x
  2. Step 2: Convert to fraction form
    60,205/90,307.77 = 18,652/x
  3. Step 3: Cross multiply
    60,205x = 90,307.77 × 18,652
  4. Step 4: Simplify right side
    60,205x = 1,684,420,526.04
  5. Step 5: Solve for x
    x = 1,684,420,526.04/60,205
  6. Step 6: Final answer
    x = 27,978.08

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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.