Home / 57,145.26-85,531.59-51,689.10

Finding the Fourth Proportional to 57,145.26, 85,531.59 and 51,689.10

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Solution

The fourth proportional to 57,145.26, 85,531.59 and 51,689.10 is: 77,365.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,145.26 : 85,531.59 = 51,689.10 : x
  2. Step 2: Convert to fraction form
    57,145.26/85,531.59 = 51,689.10/x
  3. Step 3: Cross multiply
    57,145.26x = 85,531.59 × 51,689.10
  4. Step 4: Simplify right side
    57,145.26x = 4,421,050,908.67
  5. Step 5: Solve for x
    x = 4,421,050,908.67/57,145.26
  6. Step 6: Final answer
    x = 77,365.14

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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.