Home / 76,878.10-115,329.03-32,505.04

Finding the Fourth Proportional to 76,878.10, 115,329.03 and 32,505.04

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Solution

The fourth proportional to 76,878.10, 115,329.03 and 32,505.04 is: 48,762.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,878.10 : 115,329.03 = 32,505.04 : x
  2. Step 2: Convert to fraction form
    76,878.10/115,329.03 = 32,505.04/x
  3. Step 3: Cross multiply
    76,878.10x = 115,329.03 × 32,505.04
  4. Step 4: Simplify right side
    76,878.10x = 3,748,774,733.31
  5. Step 5: Solve for x
    x = 3,748,774,733.31/76,878.10
  6. Step 6: Final answer
    x = 48,762.58

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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.