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Finding the Fourth Proportional to 42,435.20, 63,652.80 and 42,435.20

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Solution

The fourth proportional to 42,435.20, 63,652.80 and 42,435.20 is: 63,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,435.20 : 63,652.80 = 42,435.20 : x
  2. Step 2: Convert to fraction form
    42,435.20/63,652.80 = 42,435.20/x
  3. Step 3: Cross multiply
    42,435.20x = 63,652.80 × 42,435.20
  4. Step 4: Simplify right side
    42,435.20x = 2,701,119,298.56
  5. Step 5: Solve for x
    x = 2,701,119,298.56/42,435.20
  6. Step 6: Final answer
    x = 63,652.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.