Home / 90,320.50-135,480.84-37,701.28

Finding the Fourth Proportional to 90,320.50, 135,480.84 and 37,701.28

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Solution

The fourth proportional to 90,320.50, 135,480.84 and 37,701.28 is: 56,551.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,320.50 : 135,480.84 = 37,701.28 : x
  2. Step 2: Convert to fraction form
    90,320.50/135,480.84 = 37,701.28/x
  3. Step 3: Cross multiply
    90,320.50x = 135,480.84 × 37,701.28
  4. Step 4: Simplify right side
    90,320.50x = 5,107,801,083.48
  5. Step 5: Solve for x
    x = 5,107,801,083.48/90,320.50
  6. Step 6: Final answer
    x = 56,551.96

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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.