Home / 74,145.07-102,366.67-57,117.25

Finding the Fourth Proportional to 74,145.07, 102,366.67 and 57,117.25

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Solution

The fourth proportional to 74,145.07, 102,366.67 and 57,117.25 is: 78,857.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,145.07 : 102,366.67 = 57,117.25 : x
  2. Step 2: Convert to fraction form
    74,145.07/102,366.67 = 57,117.25/x
  3. Step 3: Cross multiply
    74,145.07x = 102,366.67 × 57,117.25
  4. Step 4: Simplify right side
    74,145.07x = 5,846,902,170.22
  5. Step 5: Solve for x
    x = 5,846,902,170.22/74,145.07
  6. Step 6: Final answer
    x = 78,857.60

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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.