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Finding the Fourth Proportional to 71,880.28, 99,192.50 and 45,037.28

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Solution

The fourth proportional to 71,880.28, 99,192.50 and 45,037.28 is: 62,150.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,880.28 : 99,192.50 = 45,037.28 : x
  2. Step 2: Convert to fraction form
    71,880.28/99,192.50 = 45,037.28/x
  3. Step 3: Cross multiply
    71,880.28x = 99,192.50 × 45,037.28
  4. Step 4: Simplify right side
    71,880.28x = 4,467,360,588.08
  5. Step 5: Solve for x
    x = 4,467,360,588.08/71,880.28
  6. Step 6: Final answer
    x = 62,150.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.