Home / 65,535.25-90,445.98-40,384.75

Finding the Fourth Proportional to 65,535.25, 90,445.98 and 40,384.75

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Solution

The fourth proportional to 65,535.25, 90,445.98 and 40,384.75 is: 55,735.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,535.25 : 90,445.98 = 40,384.75 : x
  2. Step 2: Convert to fraction form
    65,535.25/90,445.98 = 40,384.75/x
  3. Step 3: Cross multiply
    65,535.25x = 90,445.98 × 40,384.75
  4. Step 4: Simplify right side
    65,535.25x = 3,652,638,290.81
  5. Step 5: Solve for x
    x = 3,652,638,290.81/65,535.25
  6. Step 6: Final answer
    x = 55,735.48

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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.