Home / 74,154.18-102,338.02-42,327.86

Finding the Fourth Proportional to 74,154.18, 102,338.02 and 42,327.86

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Solution

The fourth proportional to 74,154.18, 102,338.02 and 42,327.86 is: 58,415.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,154.18 : 102,338.02 = 42,327.86 : x
  2. Step 2: Convert to fraction form
    74,154.18/102,338.02 = 42,327.86/x
  3. Step 3: Cross multiply
    74,154.18x = 102,338.02 × 42,327.86
  4. Step 4: Simplify right side
    74,154.18x = 4,331,749,171.60
  5. Step 5: Solve for x
    x = 4,331,749,171.60/74,154.18
  6. Step 6: Final answer
    x = 58,415.44

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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.