Home / 72,063.76-99,419.36-48,152.56

Finding the Fourth Proportional to 72,063.76, 99,419.36 and 48,152.56

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Solution

The fourth proportional to 72,063.76, 99,419.36 and 48,152.56 is: 66,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,063.76 : 99,419.36 = 48,152.56 : x
  2. Step 2: Convert to fraction form
    72,063.76/99,419.36 = 48,152.56/x
  3. Step 3: Cross multiply
    72,063.76x = 99,419.36 × 48,152.56
  4. Step 4: Simplify right side
    72,063.76x = 4,787,296,697.56
  5. Step 5: Solve for x
    x = 4,787,296,697.56/72,063.76
  6. Step 6: Final answer
    x = 66,431.40

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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.