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Finding the Fourth Proportional to 85,445.83, 117,914.93 and 49,656.87

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Solution

The fourth proportional to 85,445.83, 117,914.93 and 49,656.87 is: 68,526.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,445.83 : 117,914.93 = 49,656.87 : x
  2. Step 2: Convert to fraction form
    85,445.83/117,914.93 = 49,656.87/x
  3. Step 3: Cross multiply
    85,445.83x = 117,914.93 × 49,656.87
  4. Step 4: Simplify right side
    85,445.83x = 5,855,286,350.07
  5. Step 5: Solve for x
    x = 5,855,286,350.07/85,445.83
  6. Step 6: Final answer
    x = 68,526.30

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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.