Home / 66,145.48-91,230.45-45,761.46

Finding the Fourth Proportional to 66,145.48, 91,230.45 and 45,761.46

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Solution

The fourth proportional to 66,145.48, 91,230.45 and 45,761.46 is: 63,116.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,145.48 : 91,230.45 = 45,761.46 : x
  2. Step 2: Convert to fraction form
    66,145.48/91,230.45 = 45,761.46/x
  3. Step 3: Cross multiply
    66,145.48x = 91,230.45 × 45,761.46
  4. Step 4: Simplify right side
    66,145.48x = 4,174,838,702.86
  5. Step 5: Solve for x
    x = 4,174,838,702.86/66,145.48
  6. Step 6: Final answer
    x = 63,116.01

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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.