Home / 65,997.60-90,988.58-52,430.66

Finding the Fourth Proportional to 65,997.60, 90,988.58 and 52,430.66

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Solution

The fourth proportional to 65,997.60, 90,988.58 and 52,430.66 is: 72,284.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,997.60 : 90,988.58 = 52,430.66 : x
  2. Step 2: Convert to fraction form
    65,997.60/90,988.58 = 52,430.66/x
  3. Step 3: Cross multiply
    65,997.60x = 90,988.58 × 52,430.66
  4. Step 4: Simplify right side
    65,997.60x = 4,770,591,301.86
  5. Step 5: Solve for x
    x = 4,770,591,301.86/65,997.60
  6. Step 6: Final answer
    x = 72,284.31

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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.