Home / 48,307.73-66,665.43-31,318.79

Finding the Fourth Proportional to 48,307.73, 66,665.43 and 31,318.79

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Solution

The fourth proportional to 48,307.73, 66,665.43 and 31,318.79 is: 43,220.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,307.73 : 66,665.43 = 31,318.79 : x
  2. Step 2: Convert to fraction form
    48,307.73/66,665.43 = 31,318.79/x
  3. Step 3: Cross multiply
    48,307.73x = 66,665.43 × 31,318.79
  4. Step 4: Simplify right side
    48,307.73x = 2,087,880,269.10
  5. Step 5: Solve for x
    x = 2,087,880,269.10/48,307.73
  6. Step 6: Final answer
    x = 43,220.42

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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.