Home / 51,542.16-77,240.32-21,930.18

Finding the Fourth Proportional to 51,542.16, 77,240.32 and 21,930.18

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Solution

The fourth proportional to 51,542.16, 77,240.32 and 21,930.18 is: 32,864.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,542.16 : 77,240.32 = 21,930.18 : x
  2. Step 2: Convert to fraction form
    51,542.16/77,240.32 = 21,930.18/x
  3. Step 3: Cross multiply
    51,542.16x = 77,240.32 × 21,930.18
  4. Step 4: Simplify right side
    51,542.16x = 1,693,894,120.86
  5. Step 5: Solve for x
    x = 1,693,894,120.86/51,542.16
  6. Step 6: Final answer
    x = 32,864.24

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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.