Home / 90,555.89-124,967.60-56,584.09

Finding the Fourth Proportional to 90,555.89, 124,967.60 and 56,584.09

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Solution

The fourth proportional to 90,555.89, 124,967.60 and 56,584.09 is: 78,086.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,555.89 : 124,967.60 = 56,584.09 : x
  2. Step 2: Convert to fraction form
    90,555.89/124,967.60 = 56,584.09/x
  3. Step 3: Cross multiply
    90,555.89x = 124,967.60 × 56,584.09
  4. Step 4: Simplify right side
    90,555.89x = 7,071,177,850.12
  5. Step 5: Solve for x
    x = 7,071,177,850.12/90,555.89
  6. Step 6: Final answer
    x = 78,086.34

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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.