Home / 48,157.75-66,457.70-31,390.75

Finding the Fourth Proportional to 48,157.75, 66,457.70 and 31,390.75

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Solution

The fourth proportional to 48,157.75, 66,457.70 and 31,390.75 is: 43,319.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,157.75 : 66,457.70 = 31,390.75 : x
  2. Step 2: Convert to fraction form
    48,157.75/66,457.70 = 31,390.75/x
  3. Step 3: Cross multiply
    48,157.75x = 66,457.70 × 31,390.75
  4. Step 4: Simplify right side
    48,157.75x = 2,086,157,046.28
  5. Step 5: Solve for x
    x = 2,086,157,046.28/48,157.75
  6. Step 6: Final answer
    x = 43,319.24

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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.