Home / 65,556.66-90,444.87-38,685.72

Finding the Fourth Proportional to 65,556.66, 90,444.87 and 38,685.72

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Solution

The fourth proportional to 65,556.66, 90,444.87 and 38,685.72 is: 53,372.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,556.66 : 90,444.87 = 38,685.72 : x
  2. Step 2: Convert to fraction form
    65,556.66/90,444.87 = 38,685.72/x
  3. Step 3: Cross multiply
    65,556.66x = 90,444.87 × 38,685.72
  4. Step 4: Simplify right side
    65,556.66x = 3,498,924,916.26
  5. Step 5: Solve for x
    x = 3,498,924,916.26/65,556.66
  6. Step 6: Final answer
    x = 53,372.53

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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.