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Finding the Fourth Proportional to 63,586.80, 87,737.04 and 40,890.24

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Solution

The fourth proportional to 63,586.80, 87,737.04 and 40,890.24 is: 56,420.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,586.80 : 87,737.04 = 40,890.24 : x
  2. Step 2: Convert to fraction form
    63,586.80/87,737.04 = 40,890.24/x
  3. Step 3: Cross multiply
    63,586.80x = 87,737.04 × 40,890.24
  4. Step 4: Simplify right side
    63,586.80x = 3,587,588,622.49
  5. Step 5: Solve for x
    x = 3,587,588,622.49/63,586.80
  6. Step 6: Final answer
    x = 56,420.34

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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.