Home / 78,624.90-108,511.02-48,404.16

Finding the Fourth Proportional to 78,624.90, 108,511.02 and 48,404.16

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Solution

The fourth proportional to 78,624.90, 108,511.02 and 48,404.16 is: 66,803.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,624.90 : 108,511.02 = 48,404.16 : x
  2. Step 2: Convert to fraction form
    78,624.90/108,511.02 = 48,404.16/x
  3. Step 3: Cross multiply
    78,624.90x = 108,511.02 × 48,404.16
  4. Step 4: Simplify right side
    78,624.90x = 5,252,384,773.84
  5. Step 5: Solve for x
    x = 5,252,384,773.84/78,624.90
  6. Step 6: Final answer
    x = 66,803.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.