Home / 90,637.56-125,079.72-50,355.04

Finding the Fourth Proportional to 90,637.56, 125,079.72 and 50,355.04

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Solution

The fourth proportional to 90,637.56, 125,079.72 and 50,355.04 is: 69,489.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,637.56 : 125,079.72 = 50,355.04 : x
  2. Step 2: Convert to fraction form
    90,637.56/125,079.72 = 50,355.04/x
  3. Step 3: Cross multiply
    90,637.56x = 125,079.72 × 50,355.04
  4. Step 4: Simplify right side
    90,637.56x = 6,298,394,303.79
  5. Step 5: Solve for x
    x = 6,298,394,303.79/90,637.56
  6. Step 6: Final answer
    x = 69,489.89

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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.