Home / 65,429.62-90,287.36-39,597.84

Finding the Fourth Proportional to 65,429.62, 90,287.36 and 39,597.84

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Solution

The fourth proportional to 65,429.62, 90,287.36 and 39,597.84 is: 54,641.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,429.62 : 90,287.36 = 39,597.84 : x
  2. Step 2: Convert to fraction form
    65,429.62/90,287.36 = 39,597.84/x
  3. Step 3: Cross multiply
    65,429.62x = 90,287.36 × 39,597.84
  4. Step 4: Simplify right side
    65,429.62x = 3,575,184,435.30
  5. Step 5: Solve for x
    x = 3,575,184,435.30/65,429.62
  6. Step 6: Final answer
    x = 54,641.68

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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.