Home / 74,146.07-102,368.05-57,118.25

Finding the Fourth Proportional to 74,146.07, 102,368.05 and 57,118.25

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Solution

The fourth proportional to 74,146.07, 102,368.05 and 57,118.25 is: 78,858.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,146.07 : 102,368.05 = 57,118.25 : x
  2. Step 2: Convert to fraction form
    74,146.07/102,368.05 = 57,118.25/x
  3. Step 3: Cross multiply
    74,146.07x = 102,368.05 × 57,118.25
  4. Step 4: Simplify right side
    74,146.07x = 5,847,083,360.07
  5. Step 5: Solve for x
    x = 5,847,083,360.07/74,146.07
  6. Step 6: Final answer
    x = 78,858.98

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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.