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Finding the Fourth Proportional to 66,030.40, 98,858.40 and 51,265.60

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Solution

The fourth proportional to 66,030.40, 98,858.40 and 51,265.60 is: 76,753.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,030.40 : 98,858.40 = 51,265.60 : x
  2. Step 2: Convert to fraction form
    66,030.40/98,858.40 = 51,265.60/x
  3. Step 3: Cross multiply
    66,030.40x = 98,858.40 × 51,265.60
  4. Step 4: Simplify right side
    66,030.40x = 5,068,035,191.04
  5. Step 5: Solve for x
    x = 5,068,035,191.04/66,030.40
  6. Step 6: Final answer
    x = 76,753.06

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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.