Home / 72,247.74-99,702.16-40,416.66

Finding the Fourth Proportional to 72,247.74, 99,702.16 and 40,416.66

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Solution

The fourth proportional to 72,247.74, 99,702.16 and 40,416.66 is: 55,775.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,247.74 : 99,702.16 = 40,416.66 : x
  2. Step 2: Convert to fraction form
    72,247.74/99,702.16 = 40,416.66/x
  3. Step 3: Cross multiply
    72,247.74x = 99,702.16 × 40,416.66
  4. Step 4: Simplify right side
    72,247.74x = 4,029,628,200.94
  5. Step 5: Solve for x
    x = 4,029,628,200.94/72,247.74
  6. Step 6: Final answer
    x = 55,775.15

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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.