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Finding the Fourth Proportional to 66,483.37, 99,724.29 and 19,099.63

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Solution

The fourth proportional to 66,483.37, 99,724.29 and 19,099.63 is: 28,649.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,483.37 : 99,724.29 = 19,099.63 : x
  2. Step 2: Convert to fraction form
    66,483.37/99,724.29 = 19,099.63/x
  3. Step 3: Cross multiply
    66,483.37x = 99,724.29 × 19,099.63
  4. Step 4: Simplify right side
    66,483.37x = 1,904,697,041.01
  5. Step 5: Solve for x
    x = 1,904,697,041.01/66,483.37
  6. Step 6: Final answer
    x = 28,649.23

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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.