Home / 72,979.48-100,711.70-41,148.38

Finding the Fourth Proportional to 72,979.48, 100,711.70 and 41,148.38

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Solution

The fourth proportional to 72,979.48, 100,711.70 and 41,148.38 is: 56,784.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,979.48 : 100,711.70 = 41,148.38 : x
  2. Step 2: Convert to fraction form
    72,979.48/100,711.70 = 41,148.38/x
  3. Step 3: Cross multiply
    72,979.48x = 100,711.70 × 41,148.38
  4. Step 4: Simplify right side
    72,979.48x = 4,144,123,302.05
  5. Step 5: Solve for x
    x = 4,144,123,302.05/72,979.48
  6. Step 6: Final answer
    x = 56,784.77

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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.