Home / 65,508.16-90,403.68-37,218.64

Finding the Fourth Proportional to 65,508.16, 90,403.68 and 37,218.64

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Solution

The fourth proportional to 65,508.16, 90,403.68 and 37,218.64 is: 51,363.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,508.16 : 90,403.68 = 37,218.64 : x
  2. Step 2: Convert to fraction form
    65,508.16/90,403.68 = 37,218.64/x
  3. Step 3: Cross multiply
    65,508.16x = 90,403.68 × 37,218.64
  4. Step 4: Simplify right side
    65,508.16x = 3,364,702,020.60
  5. Step 5: Solve for x
    x = 3,364,702,020.60/65,508.16
  6. Step 6: Final answer
    x = 51,363.10

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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.