Home / 61,901.12-92,813.28-20,336.96

Finding the Fourth Proportional to 61,901.12, 92,813.28 and 20,336.96

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Solution

The fourth proportional to 61,901.12, 92,813.28 and 20,336.96 is: 30,492.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,901.12 : 92,813.28 = 20,336.96 : x
  2. Step 2: Convert to fraction form
    61,901.12/92,813.28 = 20,336.96/x
  3. Step 3: Cross multiply
    61,901.12x = 92,813.28 × 20,336.96
  4. Step 4: Simplify right side
    61,901.12x = 1,887,539,962.83
  5. Step 5: Solve for x
    x = 1,887,539,962.83/61,901.12
  6. Step 6: Final answer
    x = 30,492.82

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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.