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Finding the Fourth Proportional to 72,337.91, 99,808.94 and 40,501.67

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Solution

The fourth proportional to 72,337.91, 99,808.94 and 40,501.67 is: 55,882.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,337.91 : 99,808.94 = 40,501.67 : x
  2. Step 2: Convert to fraction form
    72,337.91/99,808.94 = 40,501.67/x
  3. Step 3: Cross multiply
    72,337.91x = 99,808.94 × 40,501.67
  4. Step 4: Simplify right side
    72,337.91x = 4,042,428,353.14
  5. Step 5: Solve for x
    x = 4,042,428,353.14/72,337.91
  6. Step 6: Final answer
    x = 55,882.57

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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.