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Finding the Fourth Proportional to 63,155.70, 87,154.69 and 34,861.19

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Solution

The fourth proportional to 63,155.70, 87,154.69 and 34,861.19 is: 48,108.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,155.70 : 87,154.69 = 34,861.19 : x
  2. Step 2: Convert to fraction form
    63,155.70/87,154.69 = 34,861.19/x
  3. Step 3: Cross multiply
    63,155.70x = 87,154.69 × 34,861.19
  4. Step 4: Simplify right side
    63,155.70x = 3,038,315,989.59
  5. Step 5: Solve for x
    x = 3,038,315,989.59/63,155.70
  6. Step 6: Final answer
    x = 48,108.34

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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.