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Finding the Fourth Proportional to 63,411.60, 87,566.20 and 40,803.50

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Solution

The fourth proportional to 63,411.60, 87,566.20 and 40,803.50 is: 56,346.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,411.60 : 87,566.20 = 40,803.50 : x
  2. Step 2: Convert to fraction form
    63,411.60/87,566.20 = 40,803.50/x
  3. Step 3: Cross multiply
    63,411.60x = 87,566.20 × 40,803.50
  4. Step 4: Simplify right side
    63,411.60x = 3,573,007,441.70
  5. Step 5: Solve for x
    x = 3,573,007,441.70/63,411.60
  6. Step 6: Final answer
    x = 56,346.27

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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.