Home / 43,302.57-64,956.30-12,140.25

Finding the Fourth Proportional to 43,302.57, 64,956.30 and 12,140.25

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Solution

The fourth proportional to 43,302.57, 64,956.30 and 12,140.25 is: 18,211.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,302.57 : 64,956.30 = 12,140.25 : x
  2. Step 2: Convert to fraction form
    43,302.57/64,956.30 = 12,140.25/x
  3. Step 3: Cross multiply
    43,302.57x = 64,956.30 × 12,140.25
  4. Step 4: Simplify right side
    43,302.57x = 788,585,721.08
  5. Step 5: Solve for x
    x = 788,585,721.08/43,302.57
  6. Step 6: Final answer
    x = 18,211.06

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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.