Home / 76,730.45-115,077.45-29,328.13

Finding the Fourth Proportional to 76,730.45, 115,077.45 and 29,328.13

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Solution

The fourth proportional to 76,730.45, 115,077.45 and 29,328.13 is: 43,985.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,730.45 : 115,077.45 = 29,328.13 : x
  2. Step 2: Convert to fraction form
    76,730.45/115,077.45 = 29,328.13/x
  3. Step 3: Cross multiply
    76,730.45x = 115,077.45 × 29,328.13
  4. Step 4: Simplify right side
    76,730.45x = 3,375,006,413.67
  5. Step 5: Solve for x
    x = 3,375,006,413.67/76,730.45
  6. Step 6: Final answer
    x = 43,985.23

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1.5x scale

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.