Home / 76,702.15-115,053.22-34,570.81

Finding the Fourth Proportional to 76,702.15, 115,053.22 and 34,570.81

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Solution

The fourth proportional to 76,702.15, 115,053.22 and 34,570.81 is: 51,856.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,702.15 : 115,053.22 = 34,570.81 : x
  2. Step 2: Convert to fraction form
    76,702.15/115,053.22 = 34,570.81/x
  3. Step 3: Cross multiply
    76,702.15x = 115,053.22 × 34,570.81
  4. Step 4: Simplify right side
    76,702.15x = 3,977,482,433.24
  5. Step 5: Solve for x
    x = 3,977,482,433.24/76,702.15
  6. Step 6: Final answer
    x = 51,856.21

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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.