Home / 70,217.32-105,352.58-42,156.97

Finding the Fourth Proportional to 70,217.32, 105,352.58 and 42,156.97

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Solution

The fourth proportional to 70,217.32, 105,352.58 and 42,156.97 is: 63,251.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,217.32 : 105,352.58 = 42,156.97 : x
  2. Step 2: Convert to fraction form
    70,217.32/105,352.58 = 42,156.97/x
  3. Step 3: Cross multiply
    70,217.32x = 105,352.58 × 42,156.97
  4. Step 4: Simplify right side
    70,217.32x = 4,441,345,554.48
  5. Step 5: Solve for x
    x = 4,441,345,554.48/70,217.32
  6. Step 6: Final answer
    x = 63,251.43

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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.