Home / 76,269.91-105,135.81-53,545.15

Finding the Fourth Proportional to 76,269.91, 105,135.81 and 53,545.15

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Solution

The fourth proportional to 76,269.91, 105,135.81 and 53,545.15 is: 73,810.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,269.91 : 105,135.81 = 53,545.15 : x
  2. Step 2: Convert to fraction form
    76,269.91/105,135.81 = 53,545.15/x
  3. Step 3: Cross multiply
    76,269.91x = 105,135.81 × 53,545.15
  4. Step 4: Simplify right side
    76,269.91x = 5,629,512,716.82
  5. Step 5: Solve for x
    x = 5,629,512,716.82/76,269.91
  6. Step 6: Final answer
    x = 73,810.40

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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.