Home / 76,830.80-115,246.20-58,168.40

Finding the Fourth Proportional to 76,830.80, 115,246.20 and 58,168.40

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Solution

The fourth proportional to 76,830.80, 115,246.20 and 58,168.40 is: 87,252.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,830.80 : 115,246.20 = 58,168.40 : x
  2. Step 2: Convert to fraction form
    76,830.80/115,246.20 = 58,168.40/x
  3. Step 3: Cross multiply
    76,830.80x = 115,246.20 × 58,168.40
  4. Step 4: Simplify right side
    76,830.80x = 6,703,687,060.08
  5. Step 5: Solve for x
    x = 6,703,687,060.08/76,830.80
  6. Step 6: Final answer
    x = 87,252.60

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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.