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Finding the Fourth Proportional to 63,520.56, 87,698.52 and 40,870.08

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Solution

The fourth proportional to 63,520.56, 87,698.52 and 40,870.08 is: 56,426.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,520.56 : 87,698.52 = 40,870.08 : x
  2. Step 2: Convert to fraction form
    63,520.56/87,698.52 = 40,870.08/x
  3. Step 3: Cross multiply
    63,520.56x = 87,698.52 × 40,870.08
  4. Step 4: Simplify right side
    63,520.56x = 3,584,245,528.28
  5. Step 5: Solve for x
    x = 3,584,245,528.28/63,520.56
  6. Step 6: Final answer
    x = 56,426.54

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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.