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Finding the Fourth Proportional to 63,652.80, 87,880.80 and 57,662.40

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Solution

The fourth proportional to 63,652.80, 87,880.80 and 57,662.40 is: 79,610.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,652.80 : 87,880.80 = 57,662.40 : x
  2. Step 2: Convert to fraction form
    63,652.80/87,880.80 = 57,662.40/x
  3. Step 3: Cross multiply
    63,652.80x = 87,880.80 × 57,662.40
  4. Step 4: Simplify right side
    63,652.80x = 5,067,417,841.92
  5. Step 5: Solve for x
    x = 5,067,417,841.92/63,652.80
  6. Step 6: Final answer
    x = 79,610.29

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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.