Home / 72,258.20-99,672.66-47,729.16

Finding the Fourth Proportional to 72,258.20, 99,672.66 and 47,729.16

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Solution

The fourth proportional to 72,258.20, 99,672.66 and 47,729.16 is: 65,837.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,258.20 : 99,672.66 = 47,729.16 : x
  2. Step 2: Convert to fraction form
    72,258.20/99,672.66 = 47,729.16/x
  3. Step 3: Cross multiply
    72,258.20x = 99,672.66 × 47,729.16
  4. Step 4: Simplify right side
    72,258.20x = 4,757,292,336.77
  5. Step 5: Solve for x
    x = 4,757,292,336.77/72,258.20
  6. Step 6: Final answer
    x = 65,837.40

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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.