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Finding the Fourth Proportional to 43,999.80, 66,096.90 and 42,347.40

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Solution

The fourth proportional to 43,999.80, 66,096.90 and 42,347.40 is: 63,614.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,999.80 : 66,096.90 = 42,347.40 : x
  2. Step 2: Convert to fraction form
    43,999.80/66,096.90 = 42,347.40/x
  3. Step 3: Cross multiply
    43,999.80x = 66,096.90 × 42,347.40
  4. Step 4: Simplify right side
    43,999.80x = 2,799,031,863.06
  5. Step 5: Solve for x
    x = 2,799,031,863.06/43,999.80
  6. Step 6: Final answer
    x = 63,614.65

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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.