Home / 51,820.32-77,721.86-14,384.12

Finding the Fourth Proportional to 51,820.32, 77,721.86 and 14,384.12

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Solution

The fourth proportional to 51,820.32, 77,721.86 and 14,384.12 is: 21,573.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,820.32 : 77,721.86 = 14,384.12 : x
  2. Step 2: Convert to fraction form
    51,820.32/77,721.86 = 14,384.12/x
  3. Step 3: Cross multiply
    51,820.32x = 77,721.86 × 14,384.12
  4. Step 4: Simplify right side
    51,820.32x = 1,117,960,560.86
  5. Step 5: Solve for x
    x = 1,117,960,560.86/51,820.32
  6. Step 6: Final answer
    x = 21,573.79

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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.