Home / 48,770.04-73,140.60-20,689.72

Finding the Fourth Proportional to 48,770.04, 73,140.60 and 20,689.72

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Solution

The fourth proportional to 48,770.04, 73,140.60 and 20,689.72 is: 31,028.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,770.04 : 73,140.60 = 20,689.72 : x
  2. Step 2: Convert to fraction form
    48,770.04/73,140.60 = 20,689.72/x
  3. Step 3: Cross multiply
    48,770.04x = 73,140.60 × 20,689.72
  4. Step 4: Simplify right side
    48,770.04x = 1,513,258,534.63
  5. Step 5: Solve for x
    x = 1,513,258,534.63/48,770.04
  6. Step 6: Final answer
    x = 31,028.45

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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.