Home / 65,725.60-98,588.40-39,416.80

Finding the Fourth Proportional to 65,725.60, 98,588.40 and 39,416.80

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Solution

The fourth proportional to 65,725.60, 98,588.40 and 39,416.80 is: 59,125.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,725.60 : 98,588.40 = 39,416.80 : x
  2. Step 2: Convert to fraction form
    65,725.60/98,588.40 = 39,416.80/x
  3. Step 3: Cross multiply
    65,725.60x = 98,588.40 × 39,416.80
  4. Step 4: Simplify right side
    65,725.60x = 3,886,039,245.12
  5. Step 5: Solve for x
    x = 3,886,039,245.12/65,725.60
  6. Step 6: Final answer
    x = 59,125.20

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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.