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Finding the Fourth Proportional to 66,870.60, 100,332.90 and 29,437.80

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Solution

The fourth proportional to 66,870.60, 100,332.90 and 29,437.80 is: 44,168.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,870.60 : 100,332.90 = 29,437.80 : x
  2. Step 2: Convert to fraction form
    66,870.60/100,332.90 = 29,437.80/x
  3. Step 3: Cross multiply
    66,870.60x = 100,332.90 × 29,437.80
  4. Step 4: Simplify right side
    66,870.60x = 2,953,579,843.62
  5. Step 5: Solve for x
    x = 2,953,579,843.62/66,870.60
  6. Step 6: Final answer
    x = 44,168.59

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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.