Home / 76,742.59-115,108.53-28,702.04

Finding the Fourth Proportional to 76,742.59, 115,108.53 and 28,702.04

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Solution

The fourth proportional to 76,742.59, 115,108.53 and 28,702.04 is: 43,051.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,742.59 : 115,108.53 = 28,702.04 : x
  2. Step 2: Convert to fraction form
    76,742.59/115,108.53 = 28,702.04/x
  3. Step 3: Cross multiply
    76,742.59x = 115,108.53 × 28,702.04
  4. Step 4: Simplify right side
    76,742.59x = 3,303,849,632.40
  5. Step 5: Solve for x
    x = 3,303,849,632.40/76,742.59
  6. Step 6: Final answer
    x = 43,051.06

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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.