Home / 65,623.34-90,567.01-40,146.68

Finding the Fourth Proportional to 65,623.34, 90,567.01 and 40,146.68

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Solution

The fourth proportional to 65,623.34, 90,567.01 and 40,146.68 is: 55,406.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,623.34 : 90,567.01 = 40,146.68 : x
  2. Step 2: Convert to fraction form
    65,623.34/90,567.01 = 40,146.68/x
  3. Step 3: Cross multiply
    65,623.34x = 90,567.01 × 40,146.68
  4. Step 4: Simplify right side
    65,623.34x = 3,635,964,408.83
  5. Step 5: Solve for x
    x = 3,635,964,408.83/65,623.34
  6. Step 6: Final answer
    x = 55,406.57

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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.