Home / 85,755.16-118,341.96-52,221.16

Finding the Fourth Proportional to 85,755.16, 118,341.96 and 52,221.16

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Solution

The fourth proportional to 85,755.16, 118,341.96 and 52,221.16 is: 72,065.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,755.16 : 118,341.96 = 52,221.16 : x
  2. Step 2: Convert to fraction form
    85,755.16/118,341.96 = 52,221.16/x
  3. Step 3: Cross multiply
    85,755.16x = 118,341.96 × 52,221.16
  4. Step 4: Simplify right side
    85,755.16x = 6,179,954,427.87
  5. Step 5: Solve for x
    x = 6,179,954,427.87/85,755.16
  6. Step 6: Final answer
    x = 72,065.10

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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.