Home / 85,243.32-127,901.86-45,754.30

Finding the Fourth Proportional to 85,243.32, 127,901.86 and 45,754.30

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Solution

The fourth proportional to 85,243.32, 127,901.86 and 45,754.30 is: 68,651.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,243.32 : 127,901.86 = 45,754.30 : x
  2. Step 2: Convert to fraction form
    85,243.32/127,901.86 = 45,754.30/x
  3. Step 3: Cross multiply
    85,243.32x = 127,901.86 × 45,754.30
  4. Step 4: Simplify right side
    85,243.32x = 5,852,060,073.00
  5. Step 5: Solve for x
    x = 5,852,060,073.00/85,243.32
  6. Step 6: Final answer
    x = 68,651.25

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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.