Home / 74,202.40-102,406.44-42,373.72

Finding the Fourth Proportional to 74,202.40, 102,406.44 and 42,373.72

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Solution

The fourth proportional to 74,202.40, 102,406.44 and 42,373.72 is: 58,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,202.40 : 102,406.44 = 42,373.72 : x
  2. Step 2: Convert to fraction form
    74,202.40/102,406.44 = 42,373.72/x
  3. Step 3: Cross multiply
    74,202.40x = 102,406.44 × 42,373.72
  4. Step 4: Simplify right side
    74,202.40x = 4,339,341,814.76
  5. Step 5: Solve for x
    x = 4,339,341,814.76/74,202.40
  6. Step 6: Final answer
    x = 58,479.80

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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.