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Finding the Fourth Proportional to 66,068.48, 99,103.36 and 16,820.48

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Solution

The fourth proportional to 66,068.48, 99,103.36 and 16,820.48 is: 25,230.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,068.48 : 99,103.36 = 16,820.48 : x
  2. Step 2: Convert to fraction form
    66,068.48/99,103.36 = 16,820.48/x
  3. Step 3: Cross multiply
    66,068.48x = 99,103.36 × 16,820.48
  4. Step 4: Simplify right side
    66,068.48x = 1,666,966,084.81
  5. Step 5: Solve for x
    x = 1,666,966,084.81/66,068.48
  6. Step 6: Final answer
    x = 25,230.88

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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.