Home / 74,565.51-102,938.53-57,531.48

Finding the Fourth Proportional to 74,565.51, 102,938.53 and 57,531.48

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Solution

The fourth proportional to 74,565.51, 102,938.53 and 57,531.48 is: 79,422.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,565.51 : 102,938.53 = 57,531.48 : x
  2. Step 2: Convert to fraction form
    74,565.51/102,938.53 = 57,531.48/x
  3. Step 3: Cross multiply
    74,565.51x = 102,938.53 × 57,531.48
  4. Step 4: Simplify right side
    74,565.51x = 5,922,205,979.92
  5. Step 5: Solve for x
    x = 5,922,205,979.92/74,565.51
  6. Step 6: Final answer
    x = 79,422.86

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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.