Home / 70,286.08-105,312.12-49,465.84

Finding the Fourth Proportional to 70,286.08, 105,312.12 and 49,465.84

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Solution

The fourth proportional to 70,286.08, 105,312.12 and 49,465.84 is: 74,116.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,286.08 : 105,312.12 = 49,465.84 : x
  2. Step 2: Convert to fraction form
    70,286.08/105,312.12 = 49,465.84/x
  3. Step 3: Cross multiply
    70,286.08x = 105,312.12 × 49,465.84
  4. Step 4: Simplify right side
    70,286.08x = 5,209,352,477.98
  5. Step 5: Solve for x
    x = 5,209,352,477.98/70,286.08
  6. Step 6: Final answer
    x = 74,116.42

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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.