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Finding the Fourth Proportional to 72,671.60, 101,947.60 and 72,671.60

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Solution

The fourth proportional to 72,671.60, 101,947.60 and 72,671.60 is: 101,947.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,671.60 : 101,947.60 = 72,671.60 : x
  2. Step 2: Convert to fraction form
    72,671.60/101,947.60 = 72,671.60/x
  3. Step 3: Cross multiply
    72,671.60x = 101,947.60 × 72,671.60
  4. Step 4: Simplify right side
    72,671.60x = 7,408,695,208.16
  5. Step 5: Solve for x
    x = 7,408,695,208.16/72,671.60
  6. Step 6: Final answer
    x = 101,947.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.