Home / 70,318.26-105,478.47-28,202.04

Finding the Fourth Proportional to 70,318.26, 105,478.47 and 28,202.04

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Solution

The fourth proportional to 70,318.26, 105,478.47 and 28,202.04 is: 42,303.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,318.26 : 105,478.47 = 28,202.04 : x
  2. Step 2: Convert to fraction form
    70,318.26/105,478.47 = 28,202.04/x
  3. Step 3: Cross multiply
    70,318.26x = 105,478.47 × 28,202.04
  4. Step 4: Simplify right side
    70,318.26x = 2,974,708,030.08
  5. Step 5: Solve for x
    x = 2,974,708,030.08/70,318.26
  6. Step 6: Final answer
    x = 42,303.49

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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.