Home / 91,331.10-126,045.99-53,604.54

Finding the Fourth Proportional to 91,331.10, 126,045.99 and 53,604.54

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Solution

The fourth proportional to 91,331.10, 126,045.99 and 53,604.54 is: 73,979.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,331.10 : 126,045.99 = 53,604.54 : x
  2. Step 2: Convert to fraction form
    91,331.10/126,045.99 = 53,604.54/x
  3. Step 3: Cross multiply
    91,331.10x = 126,045.99 × 53,604.54
  4. Step 4: Simplify right side
    91,331.10x = 6,756,637,312.79
  5. Step 5: Solve for x
    x = 6,756,637,312.79/91,331.10
  6. Step 6: Final answer
    x = 73,979.59

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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.