Home / 90,350.40-135,547.20-43,564.80

Finding the Fourth Proportional to 90,350.40, 135,547.20 and 43,564.80

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Solution

The fourth proportional to 90,350.40, 135,547.20 and 43,564.80 is: 65,357.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,350.40 : 135,547.20 = 43,564.80 : x
  2. Step 2: Convert to fraction form
    90,350.40/135,547.20 = 43,564.80/x
  3. Step 3: Cross multiply
    90,350.40x = 135,547.20 × 43,564.80
  4. Step 4: Simplify right side
    90,350.40x = 5,905,086,658.56
  5. Step 5: Solve for x
    x = 5,905,086,658.56/90,350.40
  6. Step 6: Final answer
    x = 65,357.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.