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Finding the Fourth Proportional to 72,554.76, 100,126.68 and 43,870.32

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Solution

The fourth proportional to 72,554.76, 100,126.68 and 43,870.32 is: 60,541.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,554.76 : 100,126.68 = 43,870.32 : x
  2. Step 2: Convert to fraction form
    72,554.76/100,126.68 = 43,870.32/x
  3. Step 3: Cross multiply
    72,554.76x = 100,126.68 × 43,870.32
  4. Step 4: Simplify right side
    72,554.76x = 4,392,589,492.14
  5. Step 5: Solve for x
    x = 4,392,589,492.14/72,554.76
  6. Step 6: Final answer
    x = 60,541.71

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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.