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Finding the Fourth Proportional to 66,457.40, 99,743.67 and 34,889.81

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Solution

The fourth proportional to 66,457.40, 99,743.67 and 34,889.81 is: 52,364.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,457.40 : 99,743.67 = 34,889.81 : x
  2. Step 2: Convert to fraction form
    66,457.40/99,743.67 = 34,889.81/x
  3. Step 3: Cross multiply
    66,457.40x = 99,743.67 × 34,889.81
  4. Step 4: Simplify right side
    66,457.40x = 3,480,037,196.28
  5. Step 5: Solve for x
    x = 3,480,037,196.28/66,457.40
  6. Step 6: Final answer
    x = 52,364.94

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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.