Home / 76,816.80-115,298.10-47,292.30

Finding the Fourth Proportional to 76,816.80, 115,298.10 and 47,292.30

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Solution

The fourth proportional to 76,816.80, 115,298.10 and 47,292.30 is: 70,983.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,816.80 : 115,298.10 = 47,292.30 : x
  2. Step 2: Convert to fraction form
    76,816.80/115,298.10 = 47,292.30/x
  3. Step 3: Cross multiply
    76,816.80x = 115,298.10 × 47,292.30
  4. Step 4: Simplify right side
    76,816.80x = 5,452,712,334.63
  5. Step 5: Solve for x
    x = 5,452,712,334.63/76,816.80
  6. Step 6: Final answer
    x = 70,983.33

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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.