Home / 72,321.17-99,813.68-40,492.11

Finding the Fourth Proportional to 72,321.17, 99,813.68 and 40,492.11

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Solution

The fourth proportional to 72,321.17, 99,813.68 and 40,492.11 is: 55,884.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,321.17 : 99,813.68 = 40,492.11 : x
  2. Step 2: Convert to fraction form
    72,321.17/99,813.68 = 40,492.11/x
  3. Step 3: Cross multiply
    72,321.17x = 99,813.68 × 40,492.11
  4. Step 4: Simplify right side
    72,321.17x = 4,041,666,307.60
  5. Step 5: Solve for x
    x = 4,041,666,307.60/72,321.17
  6. Step 6: Final answer
    x = 55,884.97

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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.