Home / 90,968.48-136,467.32-38,385.72

Finding the Fourth Proportional to 90,968.48, 136,467.32 and 38,385.72

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Solution

The fourth proportional to 90,968.48, 136,467.32 and 38,385.72 is: 57,584.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,968.48 : 136,467.32 = 38,385.72 : x
  2. Step 2: Convert to fraction form
    90,968.48/136,467.32 = 38,385.72/x
  3. Step 3: Cross multiply
    90,968.48x = 136,467.32 × 38,385.72
  4. Step 4: Simplify right side
    90,968.48x = 5,238,396,334.67
  5. Step 5: Solve for x
    x = 5,238,396,334.67/90,968.48
  6. Step 6: Final answer
    x = 57,584.74

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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.