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Finding the Fourth Proportional to 40,009.55, 60,051.98 and 20,302.25

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Solution

The fourth proportional to 40,009.55, 60,051.98 and 20,302.25 is: 30,472.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,009.55 : 60,051.98 = 20,302.25 : x
  2. Step 2: Convert to fraction form
    40,009.55/60,051.98 = 20,302.25/x
  3. Step 3: Cross multiply
    40,009.55x = 60,051.98 × 20,302.25
  4. Step 4: Simplify right side
    40,009.55x = 1,219,190,061.45
  5. Step 5: Solve for x
    x = 1,219,190,061.45/40,009.55
  6. Step 6: Final answer
    x = 30,472.48

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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.