Home / 74,062.40-102,205.56-40,528.40

Finding the Fourth Proportional to 74,062.40, 102,205.56 and 40,528.40

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Solution

The fourth proportional to 74,062.40, 102,205.56 and 40,528.40 is: 55,928.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,062.40 : 102,205.56 = 40,528.40 : x
  2. Step 2: Convert to fraction form
    74,062.40/102,205.56 = 40,528.40/x
  3. Step 3: Cross multiply
    74,062.40x = 102,205.56 × 40,528.40
  4. Step 4: Simplify right side
    74,062.40x = 4,142,227,817.90
  5. Step 5: Solve for x
    x = 4,142,227,817.90/74,062.40
  6. Step 6: Final answer
    x = 55,928.89

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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.