Home / 47,454.75-65,488.64-30,716.91

Finding the Fourth Proportional to 47,454.75, 65,488.64 and 30,716.91

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Solution

The fourth proportional to 47,454.75, 65,488.64 and 30,716.91 is: 42,390.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,454.75 : 65,488.64 = 30,716.91 : x
  2. Step 2: Convert to fraction form
    47,454.75/65,488.64 = 30,716.91/x
  3. Step 3: Cross multiply
    47,454.75x = 65,488.64 × 30,716.91
  4. Step 4: Simplify right side
    47,454.75x = 2,011,608,507.32
  5. Step 5: Solve for x
    x = 2,011,608,507.32/47,454.75
  6. Step 6: Final answer
    x = 42,390.03

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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.