Home / 72,986.16-100,572.12-50,332.08

Finding the Fourth Proportional to 72,986.16, 100,572.12 and 50,332.08

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Solution

The fourth proportional to 72,986.16, 100,572.12 and 50,332.08 is: 69,355.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,986.16 : 100,572.12 = 50,332.08 : x
  2. Step 2: Convert to fraction form
    72,986.16/100,572.12 = 50,332.08/x
  3. Step 3: Cross multiply
    72,986.16x = 100,572.12 × 50,332.08
  4. Step 4: Simplify right side
    72,986.16x = 5,062,003,989.61
  5. Step 5: Solve for x
    x = 5,062,003,989.61/72,986.16
  6. Step 6: Final answer
    x = 69,355.67

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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.