Home / 90,809.18-125,245.64-58,988.32

Finding the Fourth Proportional to 90,809.18, 125,245.64 and 58,988.32

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Solution

The fourth proportional to 90,809.18, 125,245.64 and 58,988.32 is: 81,357.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,809.18 : 125,245.64 = 58,988.32 : x
  2. Step 2: Convert to fraction form
    90,809.18/125,245.64 = 58,988.32/x
  3. Step 3: Cross multiply
    90,809.18x = 125,245.64 × 58,988.32
  4. Step 4: Simplify right side
    90,809.18x = 7,388,029,890.92
  5. Step 5: Solve for x
    x = 7,388,029,890.92/90,809.18
  6. Step 6: Final answer
    x = 81,357.74

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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.