Home / 65,585.20-98,402.64-39,308.80

Finding the Fourth Proportional to 65,585.20, 98,402.64 and 39,308.80

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Solution

The fourth proportional to 65,585.20, 98,402.64 and 39,308.80 is: 58,978.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,585.20 : 98,402.64 = 39,308.80 : x
  2. Step 2: Convert to fraction form
    65,585.20/98,402.64 = 39,308.80/x
  3. Step 3: Cross multiply
    65,585.20x = 98,402.64 × 39,308.80
  4. Step 4: Simplify right side
    65,585.20x = 3,868,089,695.23
  5. Step 5: Solve for x
    x = 3,868,089,695.23/65,585.20
  6. Step 6: Final answer
    x = 58,978.09

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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.