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Finding the Fourth Proportional to 85,505.01, 117,994.50 and 47,779.26

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Solution

The fourth proportional to 85,505.01, 117,994.50 and 47,779.26 is: 65,934.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,505.01 : 117,994.50 = 47,779.26 : x
  2. Step 2: Convert to fraction form
    85,505.01/117,994.50 = 47,779.26/x
  3. Step 3: Cross multiply
    85,505.01x = 117,994.50 × 47,779.26
  4. Step 4: Simplify right side
    85,505.01x = 5,637,689,894.07
  5. Step 5: Solve for x
    x = 5,637,689,894.07/85,505.01
  6. Step 6: Final answer
    x = 65,934.03

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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.