Home / 65,090.40-97,441.20-38,781.60

Finding the Fourth Proportional to 65,090.40, 97,441.20 and 38,781.60

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Solution

The fourth proportional to 65,090.40, 97,441.20 and 38,781.60 is: 58,056.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,090.40 : 97,441.20 = 38,781.60 : x
  2. Step 2: Convert to fraction form
    65,090.40/97,441.20 = 38,781.60/x
  3. Step 3: Cross multiply
    65,090.40x = 97,441.20 × 38,781.60
  4. Step 4: Simplify right side
    65,090.40x = 3,778,925,641.92
  5. Step 5: Solve for x
    x = 3,778,925,641.92/65,090.40
  6. Step 6: Final answer
    x = 58,056.57

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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.