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Finding the Fourth Proportional to 66,870.05, 100,461.80 and 63,087.14

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Solution

The fourth proportional to 66,870.05, 100,461.80 and 63,087.14 is: 94,778.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,870.05 : 100,461.80 = 63,087.14 : x
  2. Step 2: Convert to fraction form
    66,870.05/100,461.80 = 63,087.14/x
  3. Step 3: Cross multiply
    66,870.05x = 100,461.80 × 63,087.14
  4. Step 4: Simplify right side
    66,870.05x = 6,337,846,823.51
  5. Step 5: Solve for x
    x = 6,337,846,823.51/66,870.05
  6. Step 6: Final answer
    x = 94,778.56

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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.