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Finding the Fourth Proportional to 70,728.05, 106,093.40 and 56,622.58

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Solution

The fourth proportional to 70,728.05, 106,093.40 and 56,622.58 is: 84,934.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,728.05 : 106,093.40 = 56,622.58 : x
  2. Step 2: Convert to fraction form
    70,728.05/106,093.40 = 56,622.58/x
  3. Step 3: Cross multiply
    70,728.05x = 106,093.40 × 56,622.58
  4. Step 4: Simplify right side
    70,728.05x = 6,007,281,480.63
  5. Step 5: Solve for x
    x = 6,007,281,480.63/70,728.05
  6. Step 6: Final answer
    x = 84,934.92

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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.