Home / 90,100.80-124,295.04-58,296.96

Finding the Fourth Proportional to 90,100.80, 124,295.04 and 58,296.96

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Solution

The fourth proportional to 90,100.80, 124,295.04 and 58,296.96 is: 80,421.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,100.80 : 124,295.04 = 58,296.96 : x
  2. Step 2: Convert to fraction form
    90,100.80/124,295.04 = 58,296.96/x
  3. Step 3: Cross multiply
    90,100.80x = 124,295.04 × 58,296.96
  4. Step 4: Simplify right side
    90,100.80x = 7,246,022,975.08
  5. Step 5: Solve for x
    x = 7,246,022,975.08/90,100.80
  6. Step 6: Final answer
    x = 80,421.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.