Home / 62,720.96-94,423.68-57,209.76

Finding the Fourth Proportional to 62,720.96, 94,423.68 and 57,209.76

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Solution

The fourth proportional to 62,720.96, 94,423.68 and 57,209.76 is: 86,126.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,720.96 : 94,423.68 = 57,209.76 : x
  2. Step 2: Convert to fraction form
    62,720.96/94,423.68 = 57,209.76/x
  3. Step 3: Cross multiply
    62,720.96x = 94,423.68 × 57,209.76
  4. Step 4: Simplify right side
    62,720.96x = 5,401,956,071.12
  5. Step 5: Solve for x
    x = 5,401,956,071.12/62,720.96
  6. Step 6: Final answer
    x = 86,126.81

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.