Home / 48,158.75-66,459.08-31,391.75

Finding the Fourth Proportional to 48,158.75, 66,459.08 and 31,391.75

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Solution

The fourth proportional to 48,158.75, 66,459.08 and 31,391.75 is: 43,320.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,158.75 : 66,459.08 = 31,391.75 : x
  2. Step 2: Convert to fraction form
    48,158.75/66,459.08 = 31,391.75/x
  3. Step 3: Cross multiply
    48,158.75x = 66,459.08 × 31,391.75
  4. Step 4: Simplify right side
    48,158.75x = 2,086,266,667.63
  5. Step 5: Solve for x
    x = 2,086,266,667.63/48,158.75
  6. Step 6: Final answer
    x = 43,320.62

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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.