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Finding the Fourth Proportional to 66,483.40, 99,725.10 and 50,931.40

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Solution

The fourth proportional to 66,483.40, 99,725.10 and 50,931.40 is: 76,397.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,483.40 : 99,725.10 = 50,931.40 : x
  2. Step 2: Convert to fraction form
    66,483.40/99,725.10 = 50,931.40/x
  3. Step 3: Cross multiply
    66,483.40x = 99,725.10 × 50,931.40
  4. Step 4: Simplify right side
    66,483.40x = 5,079,138,958.14
  5. Step 5: Solve for x
    x = 5,079,138,958.14/66,483.40
  6. Step 6: Final answer
    x = 76,397.10

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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.