Home / 85,961.64-129,140.14-61,062.28

Finding the Fourth Proportional to 85,961.64, 129,140.14 and 61,062.28

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Solution

The fourth proportional to 85,961.64, 129,140.14 and 61,062.28 is: 91,733.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,961.64 : 129,140.14 = 61,062.28 : x
  2. Step 2: Convert to fraction form
    85,961.64/129,140.14 = 61,062.28/x
  3. Step 3: Cross multiply
    85,961.64x = 129,140.14 × 61,062.28
  4. Step 4: Simplify right side
    85,961.64x = 7,885,591,387.92
  5. Step 5: Solve for x
    x = 7,885,591,387.92/85,961.64
  6. Step 6: Final answer
    x = 91,733.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.