Home / 57,617.12-79,465.56-39,708.02

Finding the Fourth Proportional to 57,617.12, 79,465.56 and 39,708.02

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Solution

The fourth proportional to 57,617.12, 79,465.56 and 39,708.02 is: 54,765.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,617.12 : 79,465.56 = 39,708.02 : x
  2. Step 2: Convert to fraction form
    57,617.12/79,465.56 = 39,708.02/x
  3. Step 3: Cross multiply
    57,617.12x = 79,465.56 × 39,708.02
  4. Step 4: Simplify right side
    57,617.12x = 3,155,420,095.55
  5. Step 5: Solve for x
    x = 3,155,420,095.55/57,617.12
  6. Step 6: Final answer
    x = 54,765.32

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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.