Home / 114,870.72-172,292.40-30,637.20

Finding the Fourth Proportional to 114,870.72, 172,292.40 and 30,637.20

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Solution

The fourth proportional to 114,870.72, 172,292.40 and 30,637.20 is: 45,952.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,870.72 : 172,292.40 = 30,637.20 : x
  2. Step 2: Convert to fraction form
    114,870.72/172,292.40 = 30,637.20/x
  3. Step 3: Cross multiply
    114,870.72x = 172,292.40 × 30,637.20
  4. Step 4: Simplify right side
    114,870.72x = 5,278,556,717.28
  5. Step 5: Solve for x
    x = 5,278,556,717.28/114,870.72
  6. Step 6: Final answer
    x = 45,952.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.