Home / 85,495.08-117,985.14-47,769.24

Finding the Fourth Proportional to 85,495.08, 117,985.14 and 47,769.24

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Solution

The fourth proportional to 85,495.08, 117,985.14 and 47,769.24 is: 65,922.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,495.08 : 117,985.14 = 47,769.24 : x
  2. Step 2: Convert to fraction form
    85,495.08/117,985.14 = 47,769.24/x
  3. Step 3: Cross multiply
    85,495.08x = 117,985.14 × 47,769.24
  4. Step 4: Simplify right side
    85,495.08x = 5,636,060,469.09
  5. Step 5: Solve for x
    x = 5,636,060,469.09/85,495.08
  6. Step 6: Final answer
    x = 65,922.63

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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.