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Finding the Fourth Proportional to 40,501.80, 60,752.70 and 30,004.20

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Solution

The fourth proportional to 40,501.80, 60,752.70 and 30,004.20 is: 45,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,501.80 : 60,752.70 = 30,004.20 : x
  2. Step 2: Convert to fraction form
    40,501.80/60,752.70 = 30,004.20/x
  3. Step 3: Cross multiply
    40,501.80x = 60,752.70 × 30,004.20
  4. Step 4: Simplify right side
    40,501.80x = 1,822,836,161.34
  5. Step 5: Solve for x
    x = 1,822,836,161.34/40,501.80
  6. Step 6: Final answer
    x = 45,006.30

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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.