Home / 72,861.22-100,545.78-40,595.08

Finding the Fourth Proportional to 72,861.22, 100,545.78 and 40,595.08

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Solution

The fourth proportional to 72,861.22, 100,545.78 and 40,595.08 is: 56,019.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,861.22 : 100,545.78 = 40,595.08 : x
  2. Step 2: Convert to fraction form
    72,861.22/100,545.78 = 40,595.08/x
  3. Step 3: Cross multiply
    72,861.22x = 100,545.78 × 40,595.08
  4. Step 4: Simplify right side
    72,861.22x = 4,081,663,982.76
  5. Step 5: Solve for x
    x = 4,081,663,982.76/72,861.22
  6. Step 6: Final answer
    x = 56,019.70

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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.