Home / 74,637.23-102,920.49-57,644.24

Finding the Fourth Proportional to 74,637.23, 102,920.49 and 57,644.24

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Solution

The fourth proportional to 74,637.23, 102,920.49 and 57,644.24 is: 79,488.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,637.23 : 102,920.49 = 57,644.24 : x
  2. Step 2: Convert to fraction form
    74,637.23/102,920.49 = 57,644.24/x
  3. Step 3: Cross multiply
    74,637.23x = 102,920.49 × 57,644.24
  4. Step 4: Simplify right side
    74,637.23x = 5,932,772,911.88
  5. Step 5: Solve for x
    x = 5,932,772,911.88/74,637.23
  6. Step 6: Final answer
    x = 79,488.12

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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.