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Finding the Fourth Proportional to 42,004.70, 63,007.05 and 36,043.10

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Solution

The fourth proportional to 42,004.70, 63,007.05 and 36,043.10 is: 54,064.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,004.70 : 63,007.05 = 36,043.10 : x
  2. Step 2: Convert to fraction form
    42,004.70/63,007.05 = 36,043.10/x
  3. Step 3: Cross multiply
    42,004.70x = 63,007.05 × 36,043.10
  4. Step 4: Simplify right side
    42,004.70x = 2,270,969,403.86
  5. Step 5: Solve for x
    x = 2,270,969,403.86/42,004.70
  6. Step 6: Final answer
    x = 54,064.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.