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Finding the Fourth Proportional to 74,491.36, 111,737.05 and 21,901.30

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Solution

The fourth proportional to 74,491.36, 111,737.05 and 21,901.30 is: 32,851.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,491.36 : 111,737.05 = 21,901.30 : x
  2. Step 2: Convert to fraction form
    74,491.36/111,737.05 = 21,901.30/x
  3. Step 3: Cross multiply
    74,491.36x = 111,737.05 × 21,901.30
  4. Step 4: Simplify right side
    74,491.36x = 2,447,186,653.17
  5. Step 5: Solve for x
    x = 2,447,186,653.17/74,491.36
  6. Step 6: Final answer
    x = 32,851.95

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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.