Home / 66,216.29-91,398.23-43,572.74

Finding the Fourth Proportional to 66,216.29, 91,398.23 and 43,572.74

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Solution

The fourth proportional to 66,216.29, 91,398.23 and 43,572.74 is: 60,143.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,216.29 : 91,398.23 = 43,572.74 : x
  2. Step 2: Convert to fraction form
    66,216.29/91,398.23 = 43,572.74/x
  3. Step 3: Cross multiply
    66,216.29x = 91,398.23 × 43,572.74
  4. Step 4: Simplify right side
    66,216.29x = 3,982,471,312.25
  5. Step 5: Solve for x
    x = 3,982,471,312.25/66,216.29
  6. Step 6: Final answer
    x = 60,143.38

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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.