Home / 61,141.14-91,720.28-57,779.64

Finding the Fourth Proportional to 61,141.14, 91,720.28 and 57,779.64

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Solution

The fourth proportional to 61,141.14, 91,720.28 and 57,779.64 is: 86,677.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,141.14 : 91,720.28 = 57,779.64 : x
  2. Step 2: Convert to fraction form
    61,141.14/91,720.28 = 57,779.64/x
  3. Step 3: Cross multiply
    61,141.14x = 91,720.28 × 57,779.64
  4. Step 4: Simplify right side
    61,141.14x = 5,299,564,759.10
  5. Step 5: Solve for x
    x = 5,299,564,759.10/61,141.14
  6. Step 6: Final answer
    x = 86,677.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.