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Finding the Fourth Proportional to 40,057.98, 60,068.74 and 21,333.21

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Solution

The fourth proportional to 40,057.98, 60,068.74 and 21,333.21 is: 31,990.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,057.98 : 60,068.74 = 21,333.21 : x
  2. Step 2: Convert to fraction form
    40,057.98/60,068.74 = 21,333.21/x
  3. Step 3: Cross multiply
    40,057.98x = 60,068.74 × 21,333.21
  4. Step 4: Simplify right side
    40,057.98x = 1,281,459,044.86
  5. Step 5: Solve for x
    x = 1,281,459,044.86/40,057.98
  6. Step 6: Final answer
    x = 31,990.11

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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.