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Finding the Fourth Proportional to 68,266.76, 102,417.40 and 19,018.76

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Solution

The fourth proportional to 68,266.76, 102,417.40 and 19,018.76 is: 28,532.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,266.76 : 102,417.40 = 19,018.76 : x
  2. Step 2: Convert to fraction form
    68,266.76/102,417.40 = 19,018.76/x
  3. Step 3: Cross multiply
    68,266.76x = 102,417.40 × 19,018.76
  4. Step 4: Simplify right side
    68,266.76x = 1,947,851,950.42
  5. Step 5: Solve for x
    x = 1,947,851,950.42/68,266.76
  6. Step 6: Final answer
    x = 28,532.95

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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.