Home / 74,565.72-102,938.81-57,531.69

Finding the Fourth Proportional to 74,565.72, 102,938.81 and 57,531.69

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Solution

The fourth proportional to 74,565.72, 102,938.81 and 57,531.69 is: 79,423.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,565.72 : 102,938.81 = 57,531.69 : x
  2. Step 2: Convert to fraction form
    74,565.72/102,938.81 = 57,531.69/x
  3. Step 3: Cross multiply
    74,565.72x = 102,938.81 × 57,531.69
  4. Step 4: Simplify right side
    74,565.72x = 5,922,243,418.23
  5. Step 5: Solve for x
    x = 5,922,243,418.23/74,565.72
  6. Step 6: Final answer
    x = 79,423.14

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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.