Home / 66,511.84-99,680.28-31,461.52

Finding the Fourth Proportional to 66,511.84, 99,680.28 and 31,461.52

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Solution

The fourth proportional to 66,511.84, 99,680.28 and 31,461.52 is: 47,150.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,511.84 : 99,680.28 = 31,461.52 : x
  2. Step 2: Convert to fraction form
    66,511.84/99,680.28 = 31,461.52/x
  3. Step 3: Cross multiply
    66,511.84x = 99,680.28 × 31,461.52
  4. Step 4: Simplify right side
    66,511.84x = 3,136,093,122.83
  5. Step 5: Solve for x
    x = 3,136,093,122.83/66,511.84
  6. Step 6: Final answer
    x = 47,150.90

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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.