Home / 81,980.04-122,882.46-58,535.40

Finding the Fourth Proportional to 81,980.04, 122,882.46 and 58,535.40

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Solution

The fourth proportional to 81,980.04, 122,882.46 and 58,535.40 is: 87,740.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,980.04 : 122,882.46 = 58,535.40 : x
  2. Step 2: Convert to fraction form
    81,980.04/122,882.46 = 58,535.40/x
  3. Step 3: Cross multiply
    81,980.04x = 122,882.46 × 58,535.40
  4. Step 4: Simplify right side
    81,980.04x = 7,192,973,949.08
  5. Step 5: Solve for x
    x = 7,192,973,949.08/81,980.04
  6. Step 6: Final answer
    x = 87,740.55

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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.