Home / 90,885.38-125,431.54-53,191.22

Finding the Fourth Proportional to 90,885.38, 125,431.54 and 53,191.22

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Solution

The fourth proportional to 90,885.38, 125,431.54 and 53,191.22 is: 73,409.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,885.38 : 125,431.54 = 53,191.22 : x
  2. Step 2: Convert to fraction form
    90,885.38/125,431.54 = 53,191.22/x
  3. Step 3: Cross multiply
    90,885.38x = 125,431.54 × 53,191.22
  4. Step 4: Simplify right side
    90,885.38x = 6,671,855,878.94
  5. Step 5: Solve for x
    x = 6,671,855,878.94/90,885.38
  6. Step 6: Final answer
    x = 73,409.57

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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.