Home / 67,639.73-93,313.01-40,766.36

Finding the Fourth Proportional to 67,639.73, 93,313.01 and 40,766.36

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Solution

The fourth proportional to 67,639.73, 93,313.01 and 40,766.36 is: 56,239.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,639.73 : 93,313.01 = 40,766.36 : x
  2. Step 2: Convert to fraction form
    67,639.73/93,313.01 = 40,766.36/x
  3. Step 3: Cross multiply
    67,639.73x = 93,313.01 × 40,766.36
  4. Step 4: Simplify right side
    67,639.73x = 3,804,031,393.69
  5. Step 5: Solve for x
    x = 3,804,031,393.69/67,639.73
  6. Step 6: Final answer
    x = 56,239.60

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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.