Home / 77,402.10-116,103.26-21,242.96

Finding the Fourth Proportional to 77,402.10, 116,103.26 and 21,242.96

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Solution

The fourth proportional to 77,402.10, 116,103.26 and 21,242.96 is: 31,864.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,402.10 : 116,103.26 = 21,242.96 : x
  2. Step 2: Convert to fraction form
    77,402.10/116,103.26 = 21,242.96/x
  3. Step 3: Cross multiply
    77,402.10x = 116,103.26 × 21,242.96
  4. Step 4: Simplify right side
    77,402.10x = 2,466,376,908.05
  5. Step 5: Solve for x
    x = 2,466,376,908.05/77,402.10
  6. Step 6: Final answer
    x = 31,864.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.