Home / 90,807.51-125,318.44-75,674.83

Finding the Fourth Proportional to 90,807.51, 125,318.44 and 75,674.83

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Solution

The fourth proportional to 90,807.51, 125,318.44 and 75,674.83 is: 104,434.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,807.51 : 125,318.44 = 75,674.83 : x
  2. Step 2: Convert to fraction form
    90,807.51/125,318.44 = 75,674.83/x
  3. Step 3: Cross multiply
    90,807.51x = 125,318.44 × 75,674.83
  4. Step 4: Simplify right side
    90,807.51x = 9,483,452,011.59
  5. Step 5: Solve for x
    x = 9,483,452,011.59/90,807.51
  6. Step 6: Final answer
    x = 104,434.67

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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.