Home / 71,389.96-98,516.58-39,558.76

Finding the Fourth Proportional to 71,389.96, 98,516.58 and 39,558.76

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Solution

The fourth proportional to 71,389.96, 98,516.58 and 39,558.76 is: 54,590.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,389.96 : 98,516.58 = 39,558.76 : x
  2. Step 2: Convert to fraction form
    71,389.96/98,516.58 = 39,558.76/x
  3. Step 3: Cross multiply
    71,389.96x = 98,516.58 × 39,558.76
  4. Step 4: Simplify right side
    71,389.96x = 3,897,193,744.24
  5. Step 5: Solve for x
    x = 3,897,193,744.24/71,389.96
  6. Step 6: Final answer
    x = 54,590.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.