Home / 66,921.15-92,341.30-43,080.12

Finding the Fourth Proportional to 66,921.15, 92,341.30 and 43,080.12

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Solution

The fourth proportional to 66,921.15, 92,341.30 and 43,080.12 is: 59,444.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,921.15 : 92,341.30 = 43,080.12 : x
  2. Step 2: Convert to fraction form
    66,921.15/92,341.30 = 43,080.12/x
  3. Step 3: Cross multiply
    66,921.15x = 92,341.30 × 43,080.12
  4. Step 4: Simplify right side
    66,921.15x = 3,978,074,284.96
  5. Step 5: Solve for x
    x = 3,978,074,284.96/66,921.15
  6. Step 6: Final answer
    x = 59,444.20

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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.