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Finding the Fourth Proportional to 85,697.82, 118,488.76 and 75,056.99

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Solution

The fourth proportional to 85,697.82, 118,488.76 and 75,056.99 is: 103,776.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,697.82 : 118,488.76 = 75,056.99 : x
  2. Step 2: Convert to fraction form
    85,697.82/118,488.76 = 75,056.99/x
  3. Step 3: Cross multiply
    85,697.82x = 118,488.76 × 75,056.99
  4. Step 4: Simplify right side
    85,697.82x = 8,893,408,894.35
  5. Step 5: Solve for x
    x = 8,893,408,894.35/85,697.82
  6. Step 6: Final answer
    x = 103,776.37

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1.5x scale

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.