Home / 66,110.17-91,222.85-38,887.49

Finding the Fourth Proportional to 66,110.17, 91,222.85 and 38,887.49

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Solution

The fourth proportional to 66,110.17, 91,222.85 and 38,887.49 is: 53,659.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,110.17 : 91,222.85 = 38,887.49 : x
  2. Step 2: Convert to fraction form
    66,110.17/91,222.85 = 38,887.49/x
  3. Step 3: Cross multiply
    66,110.17x = 91,222.85 × 38,887.49
  4. Step 4: Simplify right side
    66,110.17x = 3,547,427,667.15
  5. Step 5: Solve for x
    x = 3,547,427,667.15/66,110.17
  6. Step 6: Final answer
    x = 53,659.33

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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.