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Finding the Fourth Proportional to 72,519, 100,076.25 and 44,230.56

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Solution

The fourth proportional to 72,519, 100,076.25 and 44,230.56 is: 61,038.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,519 : 100,076.25 = 44,230.56 : x
  2. Step 2: Convert to fraction form
    72,519/100,076.25 = 44,230.56/x
  3. Step 3: Cross multiply
    72,519x = 100,076.25 × 44,230.56
  4. Step 4: Simplify right side
    72,519x = 4,426,428,580.20
  5. Step 5: Solve for x
    x = 4,426,428,580.20/72,519
  6. Step 6: Final answer
    x = 61,038.19

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1.5x scale

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.