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Finding the Fourth Proportional to 70,122.58, 105,214.70 and 36,834.91

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Solution

The fourth proportional to 70,122.58, 105,214.70 and 36,834.91 is: 55,268.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,122.58 : 105,214.70 = 36,834.91 : x
  2. Step 2: Convert to fraction form
    70,122.58/105,214.70 = 36,834.91/x
  3. Step 3: Cross multiply
    70,122.58x = 105,214.70 × 36,834.91
  4. Step 4: Simplify right side
    70,122.58x = 3,875,574,005.18
  5. Step 5: Solve for x
    x = 3,875,574,005.18/70,122.58
  6. Step 6: Final answer
    x = 55,268.56

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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.