Home / 65,828.40-98,742.60-45,783.60

Finding the Fourth Proportional to 65,828.40, 98,742.60 and 45,783.60

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Solution

The fourth proportional to 65,828.40, 98,742.60 and 45,783.60 is: 68,675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,828.40 : 98,742.60 = 45,783.60 : x
  2. Step 2: Convert to fraction form
    65,828.40/98,742.60 = 45,783.60/x
  3. Step 3: Cross multiply
    65,828.40x = 98,742.60 × 45,783.60
  4. Step 4: Simplify right side
    65,828.40x = 4,520,791,701.36
  5. Step 5: Solve for x
    x = 4,520,791,701.36/65,828.40
  6. Step 6: Final answer
    x = 68,675.40

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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.