Home / 66,508.29-91,781.55-36,293.76

Finding the Fourth Proportional to 66,508.29, 91,781.55 and 36,293.76

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Solution

The fourth proportional to 66,508.29, 91,781.55 and 36,293.76 is: 50,085.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,508.29 : 91,781.55 = 36,293.76 : x
  2. Step 2: Convert to fraction form
    66,508.29/91,781.55 = 36,293.76/x
  3. Step 3: Cross multiply
    66,508.29x = 91,781.55 × 36,293.76
  4. Step 4: Simplify right side
    66,508.29x = 3,331,097,548.13
  5. Step 5: Solve for x
    x = 3,331,097,548.13/66,508.29
  6. Step 6: Final answer
    x = 50,085.45

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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.