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Finding the Fourth Proportional to 70,604.10, 105,731.19 and 39,373.74

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Solution

The fourth proportional to 70,604.10, 105,731.19 and 39,373.74 is: 58,963.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,604.10 : 105,731.19 = 39,373.74 : x
  2. Step 2: Convert to fraction form
    70,604.10/105,731.19 = 39,373.74/x
  3. Step 3: Cross multiply
    70,604.10x = 105,731.19 × 39,373.74
  4. Step 4: Simplify right side
    70,604.10x = 4,163,032,384.95
  5. Step 5: Solve for x
    x = 4,163,032,384.95/70,604.10
  6. Step 6: Final answer
    x = 58,963.04

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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.