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Finding the Fourth Proportional to 65,540.52, 90,460.85 and 46,400.40

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Solution

The fourth proportional to 65,540.52, 90,460.85 and 46,400.40 is: 64,043.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,540.52 : 90,460.85 = 46,400.40 : x
  2. Step 2: Convert to fraction form
    65,540.52/90,460.85 = 46,400.40/x
  3. Step 3: Cross multiply
    65,540.52x = 90,460.85 × 46,400.40
  4. Step 4: Simplify right side
    65,540.52x = 4,197,419,392.34
  5. Step 5: Solve for x
    x = 4,197,419,392.34/65,540.52
  6. Step 6: Final answer
    x = 64,043.12

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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.