Home / 67,665.45-93,386.34-39,371.07

Finding the Fourth Proportional to 67,665.45, 93,386.34 and 39,371.07

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Solution

The fourth proportional to 67,665.45, 93,386.34 and 39,371.07 is: 54,336.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,665.45 : 93,386.34 = 39,371.07 : x
  2. Step 2: Convert to fraction form
    67,665.45/93,386.34 = 39,371.07/x
  3. Step 3: Cross multiply
    67,665.45x = 93,386.34 × 39,371.07
  4. Step 4: Simplify right side
    67,665.45x = 3,676,720,129.18
  5. Step 5: Solve for x
    x = 3,676,720,129.18/67,665.45
  6. Step 6: Final answer
    x = 54,336.74

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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.