Home / 85,037.61-117,513.72-63,779.97

Finding the Fourth Proportional to 85,037.61, 117,513.72 and 63,779.97

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Solution

The fourth proportional to 85,037.61, 117,513.72 and 63,779.97 is: 88,137.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,037.61 : 117,513.72 = 63,779.97 : x
  2. Step 2: Convert to fraction form
    85,037.61/117,513.72 = 63,779.97/x
  3. Step 3: Cross multiply
    85,037.61x = 117,513.72 × 63,779.97
  4. Step 4: Simplify right side
    85,037.61x = 7,495,021,536.19
  5. Step 5: Solve for x
    x = 7,495,021,536.19/85,037.61
  6. Step 6: Final answer
    x = 88,137.73

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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.