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Finding the Fourth Proportional to 70,880.88, 97,818.12 and 39,052.20

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Solution

The fourth proportional to 70,880.88, 97,818.12 and 39,052.20 is: 53,893.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,880.88 : 97,818.12 = 39,052.20 : x
  2. Step 2: Convert to fraction form
    70,880.88/97,818.12 = 39,052.20/x
  3. Step 3: Cross multiply
    70,880.88x = 97,818.12 × 39,052.20
  4. Step 4: Simplify right side
    70,880.88x = 3,820,012,785.86
  5. Step 5: Solve for x
    x = 3,820,012,785.86/70,880.88
  6. Step 6: Final answer
    x = 53,893.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.