Home / 90,032.70-135,065.49-30,874.35

Finding the Fourth Proportional to 90,032.70, 135,065.49 and 30,874.35

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Solution

The fourth proportional to 90,032.70, 135,065.49 and 30,874.35 is: 46,317.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,032.70 : 135,065.49 = 30,874.35 : x
  2. Step 2: Convert to fraction form
    90,032.70/135,065.49 = 30,874.35/x
  3. Step 3: Cross multiply
    90,032.70x = 135,065.49 × 30,874.35
  4. Step 4: Simplify right side
    90,032.70x = 4,170,059,211.18
  5. Step 5: Solve for x
    x = 4,170,059,211.18/90,032.70
  6. Step 6: Final answer
    x = 46,317.16

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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.