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Finding the Fourth Proportional to 73,510.47, 110,284.13 and 20,919.94

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Solution

The fourth proportional to 73,510.47, 110,284.13 and 20,919.94 is: 31,385.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,510.47 : 110,284.13 = 20,919.94 : x
  2. Step 2: Convert to fraction form
    73,510.47/110,284.13 = 20,919.94/x
  3. Step 3: Cross multiply
    73,510.47x = 110,284.13 × 20,919.94
  4. Step 4: Simplify right side
    73,510.47x = 2,307,137,159.14
  5. Step 5: Solve for x
    x = 2,307,137,159.14/73,510.47
  6. Step 6: Final answer
    x = 31,385.15

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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.