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Finding the Fourth Proportional to 60,600.04, 90,904.92 and 21,156.28

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Solution

The fourth proportional to 60,600.04, 90,904.92 and 21,156.28 is: 31,736.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,600.04 : 90,904.92 = 21,156.28 : x
  2. Step 2: Convert to fraction form
    60,600.04/90,904.92 = 21,156.28/x
  3. Step 3: Cross multiply
    60,600.04x = 90,904.92 × 21,156.28
  4. Step 4: Simplify right side
    60,600.04x = 1,923,209,940.90
  5. Step 5: Solve for x
    x = 1,923,209,940.90/60,600.04
  6. Step 6: Final answer
    x = 31,736.12

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1.5x scale

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.